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VECTRON® SVX Technical Reference Guide Advanced Solid-State Metering for Commercial/Industrial Sites

Schlumberger Resource Management Services, Inc. 5430 Metric Place Norcross, GA 30092-2550 USA Tel : 770-446-1991 Fax : 770-263-8104

Schlumberger Resource Management Services, Inc. 313-B North Highway 11 West Union, SC 29696 USA Tel : 864-638-8300 Fax : 864-638-4950

Internet: www.slb.com/rms EL - 0041- GB - 01.00 © Copyright 2000, Schlumberger Resource Management Services, Inc.

Schlumberger Resource Management Services, Inc. 7275 West Credit Avenue Mississauga, Ontario L5N 5M9 Canada Tel : 905-858-4211 Fax : 905-858-0428

VECTRON® Solid-State Polyphase Meter Technical Reference Guide Fifth Edition Effective January 2000

Proprietary Rights Notice This manual is an unpublished work and contains the trade secrets and confidential information of Schlumberger Resource Management Services, Inc., which are not to be divulged to third parties and may not be reproduced or transmitted in whole or part, in any form or by any means, electronic or mechanical for any purpose, without the express written permission of Schlumberger Resource Management Services, Inc. All rights to designs or inventions disclosed herein, including the right to manufacture, are reserved to Schlumberger Resource Management Services, Inc. The information contained in this document is subject to change without notice. Schlumberger reserves the right to change the product specifications at any time without incurring any obligations. Trademarks used in this manual VECTRON, PC-PRO+ and PRO-READ are registered trademarks of Schlumberger Resource Management Services, Inc. All other brands and products are trademarks and/or copyrights of their respective holders.

Compliance With FCC Regulations FCC Part 15, Class A Registration The VECTRON meter has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case you will be required to correct the interference at your own expense. Any modifications or changes to the equipment, not expressly approved by the party responsible for compliance, could void your authority to operate the equipment. FCC Part 15, Class B Registration This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1)

this device may not cause harmful interference, and

2)

this device must accept any interference received, including interference that may cause undesired operation.

Changes or modification to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • • • •

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio TV technician for help.

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.

FCC Part 15, Subpart C The VECTRON with R300V has been tested and found to comply with the limits for an intentional radiator, pursuant to Part 15, Subpart C of the FCC Rules. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and

used in accordance with the instructions, may cause harmful interference to radio communications. The limits are designed to provide reasonable protection against such interference in a residential situation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment on and off, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio TV technician for help. Changes or modifications not expressly approved by Schlumberger Resource Management Services, Inc. could void the user’s authority to operate the equipment. FCC Part 68 The VECTRON modem complies with Part 68 of the FCC rules. The label affixed to this equipment contains, among other information, the FCC Registration Number and Ringer Equivalence Number (REN) for this equipment. You must, upon request, provide this information to your telephone company. The REN is useful to determine the quantity of devices you may connect to your telephone line and still have all of those devices ring when your telephone number is called. In most, but not all areas, the sum of the RENs of all devices connected to one line should not exceed five (5). To be certain of the number of devices you may connect to your line, as determined by the REN for your calling area, you should contact your local telephone company. The following jacks must be ordered from the telephone company in order to interconnect this equipment with the public communication network: RJ11 for Parallel Off-Hook Detect version, or RJ31X for Series Off-Hook Detect version of the VECTRON Modem. An FCC compliant modular plug is provided with this equipment. This equipment is designed to be connected to the telephone network or premises’ wiring using a compatible modular jack with is Part 68 compliant. If this equipment causes harm to the telephone network, the telephone company may temporarily discontinue your service. If possible, the telephone company will notify you in advance. But if advance notice is not practical, you will be notified as soon as possible. You will be informed of your right to file a complaint with the FCC. Your telephone company may make changes in its facilities, equipment, operations, or procedures that could affect the proper functioning of your equipment. If it does, you will be notified in advance to give you an opportunity to maintain uninterrupted telephone service. Connections to party lines are subject to state tariffs. Contact your local telephone company if you plan to use this equipment on party lines. This equipment cannot be used on public coin service lines provided by the telephone company. This equipment is not designed to operated via voice operation; thus it is not hearing-aid compatible (HAC) per Section 68.316, FCC Rules and Regulations. Service Return Address: Schlumberger Resource Management Services, Inc. Electricity Business Segment 313 N. Hwy 11 West Union, SC 29696

VECTRON® Solid-State Polyphase Meter Technical Reference Guide Literature No. EL-0041-GB-01.00

Copyright © 2000 Schlumberger Resource Management Services, Inc. All rights reserved.

Resource Management Services, Inc. 5430 Metric Place Norcross, GA 30092-2550 Tel: (770) 446-1991 Fax: (770) 263-8104

Notes:

Contents



General Information General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Physical Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Base Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Main Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Outputs (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Communication Boards (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 R300V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 RS-232 and RS-485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 Display Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 Programmable Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 Operating Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 Rated Accuracy (Typical, at ambient temperature). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12 Modem (SVX only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12 Burden Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12 Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 Starting Load, Creep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 Shipping Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15



Installation Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

VECTRON SVX Technical Reference Guide

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Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 preliminary Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Meters Without Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Meter With Batteries (TOU and Extended Function Versions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Site Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Meter Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Socket-Base meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Bottom-Connected Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Battery (TOU and Extended Function Versions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Battery Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Output Board Retrofit Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Hg-Wetted Board Retrofit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7



Operating Instructions Controls And Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Application of Power and Power-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Power Down Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Demand Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 TOU and Extended Function Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Normal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Alternate Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Toolbox Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 PROGRAMMABLE FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8 Register Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8 Register Selection (Demand and TOU Versions). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8 Register Selection (Extended Function Version) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9 Self-Reading Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10 Data Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

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Programmable Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10 Information Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 Normal and Alternate Display Mode Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 Test Display Mode Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 Demand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 Demand Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 Block Interval Demand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 Rolling Interval Demand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 Thermal Demand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 Cumulative Demand (SVX only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 Continuous Cumulative Demand (SVX only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 Previous Demand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 Present Interval Demand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 Demand Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 Time-Of-Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16 TOU Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16 Calendar Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16 Rate Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16 Daily Schedules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16 Seasonal Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 Holiday Schedules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 Daylight Savings Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 Current Season Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 Last Season Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18 Rate Annunciators and Active Rate Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18 Season Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18 Battery Carryover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18 Mass Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19 Mass Memory Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19 Capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19 Bit Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19 Interval Lengths. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19 Power Outage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19 Channel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19 Pulse Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

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Data Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21 Recording Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21 RS-232/RS-485 Communication Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22 Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23 Optional Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24 Optional Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25 Output Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27 Optional Communication boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27 R300V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27 RS-232 and RS-485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27 VECTRON 2200E (SVX ONLY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28 MODEM (SVX ONLY). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28 Autobaud Rate Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28 Call Windows (TOU Meters Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28 Answer Delays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29 Dialing Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29 Call On Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29 Phone Home on Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30 Phone Home During Outage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30 Off-Hook Detect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31 Phone Line Sharing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31 Modem Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31 Measurement Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32 Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32 Voltage and Current Measurements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33 Instantaneous Voltage and Instantaneous Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34 Watthour Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34 Varh Measurement (Extended Function Version) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35 VAh Measurements (Extended Function Version). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35



SiteScan On-Site Monitoring System SiteScan Meter Self-diagnostic Checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 SiteScan Toolbox Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 SiteScan System and Installation Diagnostic checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

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SiteScan Diagnostic #1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19 Polarity, Cross-Phase, and Energy Flow Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19 Diagnostic #1 Error Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19 SiteScan Diagnostic #2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21 Phase Voltage Deviation Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21 Diagnostic #2 Error Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22 SiteScan Diagnostic #3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23 Inactive Phase Current Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23 Diagnostic #3 Error Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23 SiteScan Diagnostic #4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24 Phase Angle Displacement Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24 Diagnostic #4 Error Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25 SiteScan Diagnostic #5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26 Current Waveform Distortion Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26 Diagnostic Condition Alert. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27



Testing, Troubleshooting, And Maintenance Testing Support Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Infrared Test LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Annunciators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Watthour Disk Emulation Annunciator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Voltage Indicator Annunciators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 TOU Rate Annunciators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Test Mode Annunciator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Energy Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Testing With the Infrared Test LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Testing With Pulse Initiator Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Testing Using the Disk Emulation Annunciator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Testing Using the Energy/Time Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 Recommended Energy Testing Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 Test Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 Solution 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

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Solution 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 Solution 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 Recommended Test Setup for Minimizing Test Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 Recommendations for Minimum Variability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 Demand Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 Demand Test Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 Demand Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 Calculation A: Actual Active Energy (kWh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 Calculation B: Actual Active Demand (kW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 Calculation C: Actual KVA Hours. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 Calculation D: Actual kVA Demand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 TOU Calendar Schedule Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 Daylight Savings Time Recognition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 Daily Schedules for Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 Customer Alerts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 Independent Output Daily Schedules for Current Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 Holiday Schedules for Each Specified Holiday . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 Change Dates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 Field Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 Required Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11 Test Method Using Infrared Pulse Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11 Test Method Using a Snap Switch Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11 Fatal Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11 Non-Fatal Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12 Other Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17 Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17 Calibration and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17 Battery Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17 Corrective Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18



Replacement Parts, Accessories, And Drawings Direct Replacement Caution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

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Programming Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6 Output Board Color coding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10 Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

Glossary

Index

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Notes:

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Figures Figure 1.1 1.2 1.3 1.4 1.5 1.6 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.11 4.12 4.13

Title

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VECTRON Meter Without Protective Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 VECTRON Meter With Protective Inner Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 VECTRON SVX Meter Without Protective Inner Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 VECTRON SVX Meter With Protective Inner Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 VECTRON Meter Socket-Base Meter Dimension Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 Bottom Connected (A-Base) Meter Dimension Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 Testing Battery with Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Installing the VECTRON Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Installing the VECTRON SVX Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Installing Phone-Home During Outage Battery (SVX Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Removing the Protective Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Meter Base Option Board Knockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Positioning the Output Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 Connecting the Cable Leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 Option Board Flexible Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 Hg-wetted Board for Retrofit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 Controls and Indicators of the VECTRON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Controls and Indicators of the VECTRON SVX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Warning Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Test Mode Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 VECTRON LCD Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 DIP Switch Bank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22 VECTRON SVX/RS-232 Option Board Connection With PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23 VECTRON SVX/RS-232 Option Board Connection With Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23 Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32 Sample Migration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33 Waveform Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33 Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34 Toolbox Phase Notation for Form 9S and 16S VECTRON Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Plot of Toolbox Display Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 Example of Diagnostic #1 Error Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 Form 45S VECTRON Meter in a 3-Wire Network Service – Phasor Diagram . . . . . . . . . . . . . . . . . 4-8 Form 45S VECTRON Meter in a 3-Wire Delta Service – Phasor Diagram . . . . . . . . . . . . . . . . . . . . 4-9 Form 45S VECTRON Meter in a 4-Wire Wye Service –Phasor Diagram . . . . . . . . . . . . . . . . . . . . 4-10 Form 45S VECTRON Meter in a 4-Wire Delta Service –Phasor Diagram . . . . . . . . . . . . . . . . . . . 4-11 Form 46S VECTRON Meter in a 4-Wire Wye Service –Phasor Diagram . . . . . . . . . . . . . . . . . . . . 4-12 Form 9S VECTRON Meter in a 4-Wire Wye Service –Phasor Diagram . . . . . . . . . . . . . . . . . . . . . 4-13 Form 9S VECTRON Meter in a 4-Wire Delta Service –Phasor Diagram . . . . . . . . . . . . . . . . . . . . . 4-14 Form 12S VECTRON Meter in a 3-Wire Network Service –Phasor Diagram . . . . . . . . . . . . . . . . 4-15 Form 12S VECTRON Meter in a 3-Wire Delta Service –Phasor Diagram . . . . . . . . . . . . . . . . . . . 4-16 Form 16S VECTRON Meter in a 4-Wire Wye Service –Phasor Diagram . . . . . . . . . . . . . . . . . . . . 4-17

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Figure 4.14 4.15 4.16 4.17 5.1 5.2 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 6.13 6.14 6.15 6.16 6.17 6.18 6.19 6.20 6.21 6.22 6.23 6.24 6.25 6.26 6.27

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Form 16S VECTRON Meter in a 4-Wire Delta Service –Phasor Diagram . . . . . . . . . . . . . . . . . . . . 4-18 Diagnostic #1 Error Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20 Envelope Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25 Phasor Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26 Infrared Test LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Test Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 Sangamo 4L2, 21/2 Element, Form 6A, Electromechanical Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 3ý, 4W Wye Form 46A Wiring Diagram, Type SV5AD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 PC to Meter Programming Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6 Option One Output Board VECTRON and SVX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 Option One Output Board VECTRON SVX only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 Option Two Output Board VECTRON and VECTRON SVX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8 Option Two Output Board VECTRON SVX only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8 3Ø, 3W Form 45S Wiring Diagram, Type SV3SD Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10 3Ø, 3W Form 45A Wiring Diagram, Type SV3AD Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10 3Ø, 4W , Form 45S Wiring Diagram, Type SV3AD Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11 3Ø, 4W , Form 45A Wiring Diagram, Type SV3AD Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11 3Ø, 4W Wye Form 45S Wiring Diagram, Type SV3SD Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12 3Ø, 4W Wye Form 45A Wiring Diagram, Type SV3AD Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12 3Ø, 4W Wye Form 46S Wiring Diagram, Type SV5SD Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13 3Ø, 4W Wye Form 46A Wiring Diagram, Type SV5AD Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13 3 Stator, 3Ø, 4W , Form 48A Wiring Diagram, Type SV6AD Meter 6-14 3Ø, 4W Wye or 3Ø, 4W , Form 9S Wiring Diagram, Type SV4SD Meter 6-14 3Ø, 4W Wye or 3Ø, 4W , Form 10A (9A) Wiring Diagram, Type SV4AD Meter 6-15 1Ø, 3W Form 2S Wiring Diagram, Type SV1SR Meter, Self-Contained 6-15 3Ø, 3W Network, Form 12S Wiring Diagram, Type SV2SD Meter, Self-Contained 6-16 3Ø, 3W Delta, Form 25S Wiring Diagram, Type SV2SD Meter, Self-Contained 6-16 3Ø, 4W Wye or 3Ø, 4W , Form 16S Wiring Diagram, Type SV4SD Meter, Self-Contained 6-17 3Ø, 4W Wye, 3Ø, 4W Delta Form 16A Wiring Diagram, Type SV4SD Meter 6-17 3Ø, 3W Form 66S Wiring Diagram, Type SV3SD Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18 VECTRON Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19 VECTRON SVX Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20 VECTRON Option Board Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21

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Tables Table 1.1 1.2 1.3 1.4 1.5 3.1 3.2 3.3 3.4 3.5 3.6 4.1 5.1 5.2 6.1 6.2 6.3 6.4 6.5 6.6 6.7

Title

Page

VECTRON Display Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 Potential for VECTRON Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12 Potential for VECTRON SVX Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 Shipping Weights for the VECTRON Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 Shipping Weights for the VECTRON SVX Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 Toolbox Mode Display List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 Register Display Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9 Typical Demand Subinterval Lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 Recording Duration in Days for 32 Kb of RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22 DIP Switch Setting for Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24 VECTRON RS232/485 Meter Losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24 Phase Notation in Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Coil Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 Singlephase Test Constants (SPTC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 VECTRON Meter Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3 VECTRON SVX Meter Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4 VECTRON I/O Upgrade Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4 VECTRON SVX I/O Upgrade Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5 VECTRON SVX Modem Retrofit Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5 Reader Programmer to Meter Programming Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6 VECTRON Forms and Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

VECTRON SVX Technical Reference Guide

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Tables

1RWHV

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VECTRON SVX Technical Reference Guide

CHAPTER 1

GENERAL INFORMATION This instruction manual explains the installation, operation, and maintenance of the Schlumberger VECTRON® solid-state polyphase meter. Schematics, mechanical drawings, and theoretical operations are available upon request. Schlumberger urges you to read the entire manual before attempting installation, tests, operations, or maintenance. To operate the Schlumberger PC-PRO+® programming software and PRO-READ® handheld reader programmer, refer to their respective instruction manuals.

Section 1

General Information

Provides a general background for operation of the VECTRON meter. This section includes general, physical, and functional descriptions, as well as complete specifications.

Section 2

Installation

Describes how to install a VECTRON meter. This section also details the precautions that must be taken when handling the VECTRON meter.

Section 3

Operating Instructions

Describes how to initialize the VECTRON meter. This section gives the location of the meter’s controls and describes how to obtain the desired operational modes and displays. Detailed information on the demand, timeof-use (TOU), and extended function versions and the mass memory option is also provided.

Section 4

SiteScan On-Site Monitoring System

Explains how to use the VECTRON meter’s SiteScan features to help assure that the meter’s installation and system are accurate and operating correctly.

Section 5

Testing, Troubleshooting, and Maintenance

Explains how to test, troubleshoot, and maintain the VECTRON meter.

Section 6

Replacement Parts, Accessories and Drawings.

Provides part numbers for replacement parts and programming cables. Includes block diagrams of the circuit board.

Glossary

VECTRON SVX Technical Reference Guide

Contains definitions of terms used throughout this manual.

1-1

General Information

GENERAL DESCRIPTION The VECTRON meter is an electronic device incorporating digital sampling technology to accurately measure power quantities. The meter is available in three versions: •

Demand

•

Time-of-use

•

Extended Function

The demand and TOU versions are designed for use in billing applications where information such as kW/kWh is required. The extended function is designed for use in billing applications where reactive or apparent energy quantities are required in addition to the standard real energy quantities. TOU capabilities come standard with the extended function version of the VECTRON meter. A mass memory option is available on TOU and extended function versions of the meter where load profile data is needed for billing, survey, or engineering applications. Because the VECTRON meter is designed to provide maximum flexibility, virtually all major operating characteristics are programmable. Display configuration, demand type, calendar schedules, energy quantities, and mass memory configurations are just a few of the many programmable features. All annunciators and variables are displayed on an easy-to-read liquid crystal display. Four display modes allow flexibility in the presentation of data and program parameters. All data values and parameters can be programmed for display in Normal and Alternate Modes. The display continuously scrolls in Normal Mode until Alternate Mode, Test Mode, or Toolbox Mode is selected. Test Mode displays data necessary to test the accuracy of the meter without disturbing billing data. When selected, the Toolbox Mode scrolls through per phase information on each element contained in the meter and reports on all SiteScan diagnostic counters. VECTRON meters are programmed using Schlumberger PC-PRO+ software. This software can also be used to program other Schlumberger electronic products. In addition, the PRO-READ handheld reader programmer can be used to program and read VECTRON meters. The VECTRON meter is available in a transformer rated (CL20) and selfcontained (CL200) socket version and a transformer rated (CL20) and selfcontained (CL150) A-base version. The VECTRON meter utilizes an autoranging power supply so that one meter can operate over a specified voltage range. Form consolidation, which enables one meter to be used on a variety of service types, has also been incorporated into the VECTRON meter. While all VECTRON meters are similar in design, the VECTRON SVX has several distinguishing features:

1-2

•

Full 480 Volt Autoranging—Each VECTRON SVX is rated for 120480 volt use. This feature can reduce the number of meters that a utility must inventory.

•

Auto-Service Sensing—The VECTRON SVX has the capability to determine the service type in which it is installed. The SiteScan sys-

VECTRON SVX Technical Reference Guide

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tem in the SVX does not require that meters be programmed for a specific service type. If any of the five diagnostic errors are enabled, autoservice sensing is automatically enabled. If the meter cannot determine a valid service type, a Diagnostic 1 will be reported, regardless of which diagnostic errors are enabled in the meter. •

Solid-State Outputs—In addition to mercury-wetted relays previously available in the VECTRON meter, solid-state outputs are now available in the VECTRON SVX. This option is also available as a retrofit.

•

Modem Under Glass—The VECTRON SVX is available with an internal auto-baud sensing modem. It can communicate at 300/1200/2400 baud. This modem has the capability of initiating a phone call on an event or calling on a schedule. It is also available with an option of initiating a phone call during an outage to report the loss of power. The modem option is also available as a retrofit.

•

Two Highest Peaks—The VECTRON SVX has the capability of reporting the two highest demand peaks that have occurred since the last demand reset.

•

Cumulative and Continuous Cumulative TOU—Cumulative and continuous cumulative are supported for TOU rates as well as for the non-TOU total rate.

•

Self-Reading Registers—One self-read register is available in all VECTRON SVX meters. TOU and mass memory versions have up to four self-read registers available. The self-read captures all register data in the meter and can be initiated by a demand reset or on a schedule. There are no self-read registers available on the earlier versions of the VECTRON.

•

Black Anodized Nameplate—A black nameplate replaces the blue nameplate which is on all previous versions of the VECTRON meter. The black nameplate provides better contrast between the lettering and the background. It also provides an instant indication whether the meter is the SVX version or not. The addition of the Installed Option matrix gives instant visual indication of the meter’s installed options.

PHYSICAL DESCRIPTION Each of the parts of the VECTRON meter are described in this section. The VECTRON meter is shown without the protective cover in Figure 1.1 and Figure 1.3.

The VECTRON meter is NOT a line isolated meter. Because of this, contact with the meter circuit board can cause an electric shock resulting in severe injury or death. If the circuit board is exposed, the meter MUST NOT be energized.

VECTRON SVX Technical Reference Guide

1-3

General Information

Base Assembly The base assembly consists of the meter base (socket or A-base) and the current sensors. A knockout is located at the six o’clock position in the socketbase assembly to allow wires from a retrofitted option board to exit the meter base.

Main Assembly The main assembly is connected to the base using two side supports which hold in place the power supply transformer (for VECTRON meters only), the battery (for TOU, mass memory, and extended function versions only), an option board (if applicable), and the meter board. The meter board contains two processors, as well as the liquid crystal display. A protective cover, shown in Figure 1.2 and Figure 1.4, fits over all the components to prevent accidental contact with the circuitry.

Figure 1.1 VECTRON Meter Without Protective Cover

Figure 1.2 VECTRON Meter With Protective Inner Cover

1-4

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Figure 1.3 VECTRON SVX Meter Without Protective Inner Cover

Figure 1.4 VECTRON SVX Meter With Protective Inner Cover

The VECTRON meter is NOT a line isolated meter. Because of this, contact with the meter circuit board can cause an electric shock resulting in severe injury or death. If the circuit board is exposed, the meter MUST NOT be energized.

Battery A lithium battery is provided only on the TOU, mass memory, and extended function versions of the VECTRON meter. The battery is connected to the meter circuit board using a two-pin connector and then snaps into the lower side support.

Covers VECTRON meters are available with a polycarbonate cover only. All polycarbonate covers come standard with an optical aperture assembly and a demand reset.

VECTRON SVX Technical Reference Guide

1-5

General Information

Cover options include: •

Without demand reset

•

Keylock demand reset

•

Battery access door with demand reset

•

Battery access door without demand reset

•

Battery access door with keylock demand reset

Outputs (Optional) Two optional outputs are available on all versions of VECTRON meters: •

One or two mercury-wetted relays

•

One form A solid-state contact closure

Two additional optional outputs are available on all versions of the VECTRON SVX meters: •

One or two Form C solid-state contact closures

•

AMR interface

Each form C solid-state contact can be used as a pulse initiator output (KYZ), demand threshold output, end of interval output, load control output (independent output), customer alert output, or diagnostic condition alert output. The AMR output uses solid-state technology to connect directly to the T-3000 MIU (Meter Interface Unit), which is part of the inbound telecommunications system. The load control and customer alert outputs are only available with the TOU, mass memory, or the extended function versions of the VECTRON meter.

Communication Boards (Optional) Following are brief descriptions of optional boards, either communication or output, for the VECTRON meter. The meter can support only one board at a time. Because of this, the modem, RS-232, and RS-485 are available in solidstate outputs for situations where both a communication and an output board are required. The R300V does not offer solid-state outputs. If you require a board with solid-state output, it must be specified at the time of order.

Modem An optional modem is available on all versions of the VECTRON SVX meters. The basic modem includes: •

1-6

Parallel off-hook detect (RJ-11 connector)

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•

Phone home on event

•

Calling windows

•

Phone line sharing capability

•

300/1200/2400 baud support with autobaud detection

All VECTRON SVX modems have the capability of initiating a phone call on a schedule. Additionally, the modem can initiate a phone call on an event. Events include fatal or non-fatal errors, per phase current or potential loss, diagnostic error, power restoration, and exceeded demand threshold. Optional features available on the VECTRON SVX modem include: •

Serial off-hook detect (RJ-31 connector)

•

Phone home during outage

•

Solid-state outputs

R300V The R300V is an option board that allows energy and maximum demand values to be transmitted from the VECTRON via radio frequency. Features include: •

Broadcast energy only for demand meters

•

Broadcast energy and demand for TOU meters

•

Tamper detection

•

All components housed within meter

RS-232 and RS-485 The RS-232 and RS-485 boards offer serial communications with the VECTRON meter. Both boards support point-to-point communications and multi-drop communications using SCS protocol. Features include: •

12 position DIP switch for configuration options

•

2 KYZ outputs with 1 LC available

•

Addressable (up to 256 address available)

•

Signal conversion

•

Hand shaking

•

Isolation

•

Baud rates configurable (1200, 2400, 4800, 9600)

•

DB9-F DTE connector on RS-232

•

RJ11 connector on RS-485

VECTRON SVX Technical Reference Guide

1-7

General Information

DISPLAY ITEMS All VECTRON meters can display a maximum of 32 Normal, 32 Alternate, and 10 Test items, up to a total count of no more than 48 items. The display items and sequence of display, along with any desired annunciators or ID code number, are selected during program setup, a feature of the PC-PRO+ software. Table 1.1 lists, in alphabetical order, items programmable for display in the modes indicated. Detailed information about these display items is given in the PC-PRO+ Software User’s Manual. Table 1.1 VECTRON Display Modes

Display Item

Normal

Alt.

Continuous Cumulative kVA total (E rate only)*

X

X

Continuous Cumulative kvar lag (E rate only)*

X

X

Continuous Cumulative kW (E rate only)*

X

X

Continuous Cumulative kVA lag (E rate only)*

X

X

Cumulative kVA lag (E rate only)*

X

X

Cumulative kVA total (E rate only)*

X

X

Cumulative kvar lag (E rate only)*

X

X

Cumulative kW (E rate only)

X

X

Current Date (TOU only)

X

X

Current Time (TOU only)

X

X

Date Max Demand (TOU only)

X

X

Day of Week (TOU only)

X

X

Days Since Last Reset

X

X

Demand Threshold Value

X

X

Test

Diagnostic Counters (d1, d2, d3, d4, d5)

Toolbox

X

Display Duration

X

X

Error Codes

X

X

Firmware Revision # (Back End)

X

X

Firmware Revision # (Front End)

X

X

Instantaneous Amps (per phase)

X

Instantaneous kVA lag*

X

X

X

Instantaneous kVA total*

X

X

X

Instantaneous kvar lag*

X

X

X

Instantaneous kW

X

X

X

* Indicates items available for display with the extended function version only. The energy and demand quantities which show up in the display item list will vary depending on the extended registers selected for that particular configuration, such as vars or VA.

1-8

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Table 1.1 VECTRON Display Modes

Display Item

Normal

Alt.

Test

Instantaneous Volts (per phase)

Toolbox X

kVAh lag*

X

X

X

kvarh lag*

X

X

X

kvarh lead*

X

X

X

kWh

X

X

X

KYZ pulse weight #1

X

X

KYZ pulse weight #2

X

X

Last Season Billing Values (TOU only)

X

X

Maximum kVA lag*

X

X

X

Maximum kVA total*

X

X

X

Maximum kvar lag*

X

X

X

Maximum kW

X

X

X

Meter ID 1 (9 digits)

X

X

Meter ID 2 (9 digits)

X

X

Meter Kh

X

X

Normal Mode Subinterval Length

X

X

Number of Demand Resets

X

X

Number of Power Outages

X

X

X

Per Phase Current Angle

X

Per Phase Voltage Angle

X

Present Interval Input Pulse Count

X

Present Interval kVA lag*

X

X

X

Present Interval kVA total*

X

X

X

Present interval kW

X

X

X

Previous Interval Input Pulse Count Previous kvar*

X X

X

Previous kVA*

X

X

Previous kW

X

X

Program ID Number (3 digits)

X

X

Segment Test

X

X

Software Revision

X

X

* Indicates items available for display with the extended function version only. The energy and demand quantities which show up in the display item list will vary depending on the extended registers selected for that particular configuration, such as vars or VA.

VECTRON SVX Technical Reference Guide

1-9

General Information

Table 1.1 VECTRON Display Modes

Display Item

Normal

Alt.

Test

Test Maximum kW

Toolbox

X

Test Mode Number of Subintervals

X

X

Test Mode Subinterval Length

X

X

Time and Date Last Programmed (TOU only)

X

X

Time and Date of Last Reset (TOU only)

X

X

Time Max Demand (TOU only)

X

X

Time on Battery Carryover (TOU only)

X

X

Time Remaining Before Test Mode Timeout

X

Time Remaining in Subinterval

X

X

TOU Program Expiration Date (TOU only)

X

X

TOU Rate Schedule ID Number (TOU only)

X

X

Transformer Factor

X

X

User Defined Fields (up to three 9-digit fields)

X

X

X

* Indicates items available for display with the extended function version only. The energy and demand quantities which show up in the display item list will vary depending on the extended registers selected for that particular configuration, such as vars or VA.

Specifications Electrical Voltage Ranges (before SVX):

60 Hz range: (Nominal)

60 Hz range: (Actual)

1

120-277 volts

96-332 volts

2

240-480 volts

192-552 volts

3

100-115 volts

80-132 volts

4

57.7-63.5 volts

46-76 volts

120-480 volts

96-528 volts

Voltage Ranges SVX: Frequency:

50 Hz or 60 Hz

Operating Range:

± 3 Hz

TOU/Extended Function Battery Voltage:

3.6 V nominal

Operating Range:

3.4 V - 3.8 V

Carryover: TOU

365 days minimum

TOU/Extended Function with mass memory

300 days minimum

Surge Suppression

1-10

IEEE C62.41 - 1980

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Programmable Outputs

Mercury-Wetted Relays Voltage:

240 V DC or AC RMS; 250 V maximum

Current:

350 mA DC or AC RMS

Low Current Solid-State Contacts Voltage:

30 V DC or AC RMS

Current:

70 mA DC or AC RMS

Solid-State KYZ (SVX only) Voltage:

120 V DC or AC RMS maximum

Current:

• • •

Pulse Rate:

70 mA DC or AC RMS, continuous, maximum at -40°C to +85°C 100 mA DC or AC RMS, continuous, maximum at 25°C 350 mA pulse for 10 ms, maximum at 25°C

20 Hz maximum

Operating Environment

Temperature range:

-40°C to +85°C (-40°F to +185°F)

Humidity:

0% to 95% non-condensing

Time Base:

Power line frequency or crystal oscillator (selectable)

Rated Accuracy (Typical, at ambient temperature)

(1% of class-to-class)

± 0.2% @ unity power factor ± 0.5% @ 50% power factor

VECTRON SVX Technical Reference Guide

1-11

General Information

Time

Line Sync:

Power line frequency

Crystal Sync:

± 0.01% @ 25°C; ± 0.02% over full temperature range

Battery:

± 0.005% @ 25°C; +0.005% to -0.02% over full temperature range 10–12 year shelf life Continuous operation Clock battery: 360 days Phone home during outage battery: 60–70 calls (SVX only)

Modem (SVX only)

Bell 103/212A (300b/1200b) CCITT V.22BIS (2400b)

Burden Data Potential

Table 1.2 Potential for VECTRON Meter Potential 120V - 277V Typical for Basic Meter Voltage

120 240 277

Typical for Meter with Option Board

Phase

VA

Watts

VA

Watts

A

0.59

0.44

1.85

1.60

B or C

0.03

0.03

0.03

0.03

A

1.26

0.80

2.36

1.74

B or C

0.11

0.11

0.11

0.11

A

2.20

0.99

3.21

1.95

B or C

0.14

0.14

0.14

0.14

Potential 240V - 480V Typical for Basic Meter Voltage

240 277 480

1-12

Typical for Meter with Option Board

Phase

VA

Watts

VA

Watts

A

0.62

0.50

0.76

0.61

B or C

0.06

0.06

0.06

0.06

A

0.68

0.55

0.83

0.66

B or C

0.08

0.08

0.08

0.08

A

1.26

1.00

1.41

1.08

B or C

0.25

0.25

0.25

0.25

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Table 1.3 Potential for VECTRON SVX Meter Potential 120V - 480V Typical for Basic Meter

Typical for Meter with Modem or R300V

Typical for Meter with RS-232 or RS-485

Voltage

Phase

VA

Watts

VA

Watts

VA

Watts

120

A

1.6324

1.1582

1.9631

1.5033

2.1435

1.8963

240

277

480

B or C

0.001

<0.01

0.02

<0.02

<0.001

<0.001

A

3.2062

1.4819

3.6351

1.8154

3.4594

2.2151

B or C

0.06

<0.06

0.06

<0.06

<0.001

<0.001

A

3.7355

1.6262

4.1823

1.9499

4.0494

2.3691

B or C

0.08

<0.08

0.08

<0.08

<0.001

<0.001

A

8.5673

2.5973

9.8294

2.9366

9.5701

3.2837

B or C

0.24

<0.24

0.24

<0.24

<0.001

<0.001

Current Current (Per Element) At Test Amps Meter

VA

CL 20

0.0018

CL 200

0.16

Starting Load, Creep

Maximum Starting Current

5 mA for CL 20 meter 50 mA for CL 200 meter

Voltages On, No Currents

Guaranteed no output pulses

Standards

ANSI C12.1 — 1995 ANSI C12.16 (Solid-state electricity meters) ANSI C37.90.1 — 1989 (Oscillatory and fast-transient waveforms) ANSI C62.45 — 1987 (Ringing wave form) IEC 801-4 (4kV) — 1988 (Electrical fast-transient/burst requirements)

VECTRON SVX Technical Reference Guide

1-13

General Information

Dimensions All dimensions are in centimeters and (inches).

Meter

Socket-base

A

B

C

D

14.0 (5.5)

15.3 (6.0)

3.3 (1.3)

17.5 (6.9)

Bottom Connected

E

F

G

H

17.8 (7.0)

24.1 (9.5)

18.3 (7.2)

19.3 (7.6)

'

$ %

&

Figure 1.5 VECTRON Meter Socket-Base Meter Dimension Drawing

)

(

* +

Figure 1.6 Bottom Connected (A-Base) Meter Dimension Drawing

1-14

VECTRON SVX Technical Reference Guide

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Shipping Weights All weights are in kilograms and (pounds).

Table 1.4 Shipping Weights for the VECTRON Meter Meter Socket-base Bottom Connected

Net Weight

Gross Weight (Meter & Carton)

Gross Weight 4 Pack

1.8 kg (4 lbs.)

3.4 kg (7.5 lbs.)

9.2 kg (20.2 lbs.)

2.8 kg (6.2 lbs.)

4.4 kg (9.7 lbs.)

13.2 kg (29.1 lbs.)

Table 1.5 Shipping Weights for the VECTRON SVX Meter Meter

Net Weight

Gross Weight (Meter & Carton)

Gross Weight 4 Pack

Socket-base

1.4 kg (3.1 lbs.)

3 kg (6.5 lbs.)

10 kg (22 lbs.)

Bottom Connected

2.6 kg (5.7 lbs.)

4.2 kg (9.3 lbs.)

13.5 kg (29.7 lbs.)

VECTRON SVX Technical Reference Guide

1-15

General Information

Notes:

1-16

VECTRON SVX Technical Reference Guide

CHAPTER 2

INSTALLATION This section provides information and instructions to correctly store, unpack, and install all versions of the VECTRON meter.

STORAGE Store the VECTRON meter in a clean, dry environment at temperatures between -40°C and +85°C (-40°F to +185°F). Avoid prolonged storage (more than one year) at temperatures above +70°C (+185°F). Inspect the meter upon receipt before storing. Store the meter in the original packing material. If storage is to exceed 45 days, the battery supplied with a TOU or extended function version meter should be stored separately.

UNPACKING As with all precision electronic instruments, the VECTRON meter should be handled with care; however, special handling is unnecessary. When a demand reset mechanism is supplied, it is secured with a wire seal. Do not remove the seal until necessary. When handling the circuit board assembly, grip the board edges to avoid damaging the electronic components. Do not touch the liquid crystal display as this can damage the glass or affect display readability.

PRELIMINARY INSPECTION Meters Without Batteries Upon receipt, do the following: 1

Inspect for obvious shipping damage to the cover and the meter assembly.

2

If the meter is equipped with a reset mechanism, ensure that it is secure and not damaged.

3

From the meter nameplate, verify that the following information is as specified on the original order:

VECTRON SVX Technical Reference Guide

•

Meter type

•

Kh

•

Class

•

Test Amps

•

Service

•

Frequency

•

Voltage (Range)

•

Serial number

2-1

Installation

• 4

Form #

•

Bar Code data

If supplied, ensure that output cable assemblies and connectors are not damaged.

Meter With Batteries (TOU and Extended Function Versions) The battery is packaged with the meter. To preserve the capacity of the battery, the battery is not connected to the circuit board. Upon receipt of the meter, take the following steps: 1

Inspect for obvious shipping damage to the battery.

2

Use a standard voltmeter to measure battery voltage. Place a 100 kilo-ohm, 1/4 watt resistor in series with the battery, as shown in Figure 2.1, by inserting the resistor leads into the two-pin connector.

Figure 2.1 Testing Battery with Voltmeter

Place the voltmeter probes in parallel with the 100 kilo-ohm resistor. The measured voltage should be between 3.45 and 3.75 volts. If the voltage is below 3.45 volts, replace the battery.

Ensure that the voltmeter probes do not short the battery terminals and that the voltmeter is set to the proper voltage range.

The product you have purchased contains a battery which is recyclable. At the end of its useful life, under various state and local laws, it may be illegal to dispose of this battery into the municipal waste stream. Check with your local area solid waste officials for details about recycling options or proper disposal.

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SITE SELECTION The VECTRON meter is designed and manufactured for use in outdoor environments with temperature ranges between -40°C and +85°C (-40°F to +185°F).

INSTALLATION Meter Installation Socket-Base meters In the socket-base VECTRON meter, the current and voltage terminals extend as blades, or bayonets, from the back of the meter. Connection is made by plugging the meter into a socket where the bayonets engage main terminal jaws that have been connected to the service lines. Electrical connection is provided by the heavy spring pressure of the socket jaws on the meter bayonets. In some heavy-duty sockets, clamping pressure provided by a handle or wrench ensures proper connection.

Bottom-Connected Meters All bottom-connected VECTRON meters use a terminal block that has a maximum of eight current terminals and seven voltage terminals. In the bottom connected VECTRON meter, the leads are brought down from the current sensors to the terminal block which can be covered and sealed.

Cover To install the cover, turn it clockwise until it is properly seated. Be sure the locking tabs on the cover are engaged with the base, and the optical tower and demand reset are properly aligned with their corresponding accessories on the register faceplate. If the cover is not correctly aligned, a demand reset or communications with the meter via a handheld reader or laptop computer through the optical tower will not be possible.

Do not power up the meter without the protective cover in place.

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Installation

Battery (TOU and Extended Function Versions) For initial installation, install the battery before powering up or programming the meter. When replacing a battery, make sure the meter remains energized and that the protective inner cover is installed on the meter. 1

Remove the connector housing located at the six o’clock position on the front of the protective cover.

2

Install the two-pin battery connector into the connector housing, making sure that the battery connector is flush with the bottom of the battery.

3

Plug the connector housing with the installed battery connector back into the front of the protective inner cover (Figure 2.2), and then snap the battery into the lower side support of the meter (Figure 2.3).

Figure 2.2 Installing the VECTRON Battery

Figure 2.3 Installing the VECTRON SVX Battery

Battery Modem An additional lithium battery is provided with the VECTRON SVX if the meter has been ordered with a modem and the phone home during outage option. As shown in Figure 2.4, the battery is connected to the modem board using a twopin connector and then snaps into the lower side support.

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Figure 2.4 Installing Phone-Home During Outage Battery (SVX Only)

Output Board Retrofit Installation

Be sure to power down the meter.

To add an output board to a VECTRON meter, perform the following steps: 1 Remove the protective cover by applying pressure near the meter baseplate at the three o’clock and nine o’clock positions. (See Figure 2.5.) The cover is held in place by four latching clasps at the base which must be released to remove the cover. 2 Remove the main circuit board located at the front of the meter. Figure 2.5 Removing the Protective Cover

3 Looking at the meter base, there are two knockouts at the six o’clock position. Remove the left-hand knockout, which is shown in Figure 2.6. 4 Route the ends of the output cable assembly through this knockout from the outside of the meter up to where the option board will be located.

Figure 2.6 Meter Base Option Board Knockout

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Installation

5 Place the output board in the grooves located below the main circuit board. As illustrated in Figure 2.7, the board should be positioned so that the components face the baseplate and the curved side of the output board faces the three o’clock position.

Figure 2.7 Positioning the Output Board

6 Connect the leads from the cable assembly to the output board, as shown in Figure 2.8. 7 Replace the main circuit board back onto the front of the meter.

Figure 2.8 Connecting the Cable Leads

8 Connect the output board to the main circuit board with the flexible connector. (See Figure 2.9.)

Figure 2.9 Option Board Flexible Connector

If the meter was not ordered with provisions for KYZ outputs, the male connector (which comes standard with all output kits) will have to be soldered to the main circuit board first. The flexible connector from the output board will then fit over the male connector from the main circuit board.

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9

Place the protective cover back on the meter. Make sure all four latching clasps at the base of the meter are engaged.

Do not power up the meter without the protective cover in place.

Hg-Wetted Board Retrofit Installation Follow the installation instructions provided above with the following addition: If you are installing a Hg-wetted option board into a VECTRON which is not a type SVX, you must have the two plastic tabs at the 6 o’clock and 12 o’clock positions, as shown in Figure 2.10. For SVX, the tabs must be removed. 3ODVWLF7DE

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Figure 2.10 Hg-wetted Board for Retrofit Installation

PROGRAMMING The battery should be connected and the meter must be powered prior to programming. The meter can be programmed through the cover using the optical tower, or, if equipped, through the RS-232 or RS-485 board connections. The communication baud rate for the optical tower is 9600. Refer to the PC-PRO+ Programming user’s manual for detailed instructions for programming the VECTRON meter.

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Notes:

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VECTRON SVX Technical Reference Guide

CHAPTER 3

OPERATING INSTRUCTIONS This chapter will show you the location of the meter’s controls and will describe how to obtain the desired operational modes and displays. It will also tell how to initialize the VECTRON meter while providing detailed information on demand, TOU, and extended function versions of the meter, as well as the mass memory, KYZ, and communication board options.

CONTROLS AND INDICATORS All controls and indicators are shown in Figure 3.1 and Figure 3.2. $OWHUQDWH0RGH7RROER[0RGH6ZLWFK 0DJQHWLF5HHG6ZLWFK

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Figure 3.1 Controls and Indicators of the VECTRON

VECTRON SVX Technical Reference Guide

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Operating Instructions

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APPLICATION OF POWER AND POWER-UP The power supply transformer, not included in the VECTRON SVX, that powers the meter is connected in parallel with the meter’s A phase voltage sensor. “A phase” is defined as the left-hand voltage element. This transformer is energized when AC power is applied to the meter.

Do not remove the electronics housing while the meter is powered up. Because resister dividers are used on the VECTRON, line-level voltages are present on the circuit board. Failure to follow this procedure could result in serious personal injury or death. The warning label, shown in Figure 3.3, should always be visible on the electronics housing.

Figure 3.3 Warning Label

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POWER DOWN PROCEDURES To manually de-energize all electronics, remove power from the meter. A power outage is recognized any time the line voltage drops 20 percent below the lowest nominal point of the voltage range. At this point, the VECTRON meter copies all billing values to nonvolatile memory.

Demand Meter Restoration of AC power re-initializes the electronics and causes the meter to perform self-diagnostic check procedures. The meter then retrieves all billing data and begins a new demand interval.

TOU and Extended Function Meters When a TOU or extended function meter recognizes a power outage according to specifications, it begins battery carry-over operation. All program and billing data will be transferred to nonvolatile memory. All circuits except the timekeeping circuit and battery-backed RAM are de-energized. The timekeeping circuitry powered by the lithium battery maintains real time during an outage. Upon the return of AC power, the register undergoes a procedure similar to the initial power-up. The meter performs self-diagnostic checks, data is retrieved from nonvolatile memory, and normal operation is resumed. The number of minutes of power outage, maintained while the meter was in carry-over operation, is added to Time on Battery Carryover. Since the demand interval is synchronized to the top of the hour, the first demand interval after a power outage may be shorter than the programmed interval value.

OPERATING PROCEDURES Normal Mode Upon power-up, all VECTRON meters operate in the Normal Mode. The display continuously scrolls through the Normal display sequence, displaying each selected quantity, annunciator, and ID code for a program-specified duration. The meter operates in Normal Mode until one of the following occurs: power is disconnected; the Alternate display sequence is initiated; Test Mode is accessed, or the Toolbox Mode is accessed.

Alternate Mode Alternate Mode is entered from Normal Mode by using the magnetic reed switch or one of the programming devices. Alternate Mode is indicated by the flashing ALT annunciator.

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Operating Instructions

To activate this mode with the magnetic reed switch, momentarily (less than four seconds) move a small magnet (30 gauss) near the reed switch. The reed switch is located in the twelve o’clock position just above the nameplate, and labeled ALT/TOOLBOX. It can be accessed with the cover in place. The reed switch, hidden from view by the meter module enclosure (Figure 3.1 and Figure 3.2), is activated by the magnet and the meter enters the Alternate Mode. To activate this mode with an auxiliary programming device, refer to the PCPRO+ or PRO-READ software user’s manuals. Once the Alternate Mode has been activated, the display scrolls once through the programmed items and then returns to the Normal Mode. Operation of the register in Alternate Mode is identical to that of Normal Mode. The quantities displayed and the length of each display item are selected during programming. Like the displays in Normal Mode, each display item in Alternate Mode can have a two-digit identifier. If selected, this code can be from 01 to 99. All calculations performed in Alternate Mode are identical to those performed in Normal Mode. As an option, the Alternate Mode can be programmed for manual scrolling. When this option is selected, the meter will not advance to the next display time until the magnetic reed switch is activated.

Test Mode The Test Mode can be accessed from either the Normal or Alternate Mode by removing the meter cover and pressing the Test button (Figure 3.4) until it locks. To release the Test button, simply slide the nameplate up slightly.

Figure 3.4 Test Mode Button

To activate this mode with a programming device, refer to the appropriate software user’s manual. A programmable time-out length from 1 to 99 minutes is available when entering Test Mode through the software. After the programmed time-out length has ended, the register will exit Test Mode automatically. This applies only if Test Mode was entered through the software. If the Test Mode was entered by a hardware initiation, the SVX version of the VECTRON has an added feature—if the meter is inadvertently left in Test Mode, it will return to normal metering operation after 24 hours.

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The Test Mode annunciator, shown in Figure 3.5, continuously flashes while the VECTRON meter is in Test Mode or Toolbox Mode. In Test Mode, each programmed display item remains on the display until manually scrolled to the next item by activating the magnetic reed switch. Activating Test Mode causes all billing data to be transferred to nonvolatile memory. Upon entry of Test Mode, if any of the present interval’s calculated demand values are higher than the stored maximum demand values, the new values are stored as maximum demands. All Test Mode program parameters are then retrieved from nonvolatile memory for use in Test Mode. The parameters are demand test interval length, number of subintervals, and test Kh . Each is independent from those specified for Normal Mode. Activating the demand reset while in Test Mode initializes the demand test interval. (This interval is not synchronized to the top of the hour.) To exit Test Mode and place the register in Normal Mode, perform one of the following: • •

•

If Test Mode was activated manually, slide the nameplate slightly upward to release the locking Test Mode button. If Test Mode was activated via programming communications, do any of the following: •

Press and then release the manual Test Mode button.

•

Wait for selected Test Mode time-out to occur.

If the meter is inadvertently left in Test Mode, it will return to normal metering operations after 24 hours (SVX only).

Values calculated in Test Mode are not added to previous billing values or stored for retrieval. After exiting Test Mode, all billing data previously transferred to nonvolatile memory is retrieved, an end-of-interval (EOI) is initiated, and a new demand interval begins. Any time-related activities, such as TOU rate changes or Daylight Savings Time (DST) changes that occur while the meter is in Test Mode, are performed upon exiting Test Mode.

Toolbox Mode You can enter the Toolbox Mode from either Normal or Alternate Mode. The Toolbox Mode is accessed by activating the magnetic reed switch for four consecutive seconds. Upon activation, a flashing “TEST” appears on the left side of the display and a continuous PhA appears in the upper left-hand corner. To activate this mode with the reed switch, place a small magnet (approximately 30 gauss) near the reed switch located at the 12 o’clock position on the meter. The nameplate is marked ALT/TOOLBOX to indicate the correct location. The switch, hidden from view by the meter module housing, is activated by the magnet and the meter first enters the Alternate Mode. After four consecutive seconds the meter then enters the Toolbox Mode. The magnetic reed switch can be activated with the meter cover in place. Once activated, the Toolbox Mode scrolls through the list of per phase items and diagnostic counters. See Table 3.1, Toolbox Mode Display List, for an example of a 3-element VECTRON meter. As long as the reed switch is

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Operating Instructions

activated, the meter continues to scroll through the display list. For a more detailed discussion about the Toolbox Mode Display List, refer to Chapter 4, "SiteScan On-Site Monitoring System".

Table 3.1 Toolbox Mode Display List Description

Display

Phase A voltage angle

PhA

0.0°

U

Phase A voltage

PhA

xxx.x

U

Phase A current angle

PhA

xxx.x°

A

Phase A current

PhA

xxx.x

A

Phase B voltage angle

PhB

xxx.x°

U

Phase B voltage

PhB

xxx.x

U

Phase B current angle

PhB

xxx.x°

A

Phase B current

PhB

xxx.x

A

Phase C voltage angle

PhC

xxx.x°

U

Phase C voltage

PhC

xxx.x

U

Phase C current angle

PhC

xxx.x°

A

Phase C current

PhC

xxx.x

A

# of Diagnostic 1 errors

d1

xxx

# of Diagnostic 2 errors

d2

xxx

# of Diagnostic 3 errors

d3

xxx

# of Diagnostic 4 errors

d4

xxx

# of Diagnostic 5 errors

d5

xxx

All “PhA”, “PhB”, “PhC” quantities are displayed with a fixed decimal and no leading zeros. The Watthour Disk Emulator is not displayed while the diagnostic counters are displayed. The diagnostic counters are displayed with leading zeros (000-255).

When the magnet is removed, the meter finishes scrolling through the remaining items in the Toolbox Mode Display List and returns to the Normal Mode display sequence. The meter continues to perform all normal metering operations while the Toolbox Mode is active. The per phase Volt and Amp readings are Root-Mean-Square (RMS) values which are updated every second. The voltage and current angles are updated every five seconds. The direction of the watthour disk emulator, which scrolls at a constant rate of one revolution per 1.33 seconds, is the same as the direction of energy flow for the phase being displayed (left to right if delivered to the load; right to left if received from the load). If any quantity is undefined due to the meter’s form, the per phase information for that quantity is skipped.

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If the magnitude of the current for that phase is too low, the current magnitude and angle for a particular phase (A, B, or C) are displayed as dashed lines (---). This low current threshold is defined as 0.5% of class current. The SiteScan diagnostic counters represent the number of times each diagnostic error occurred since the last time the counters were reset. (For detailed information about the SiteScan Diagnostic Checks, refer to Chapter 4, "SiteScan On-Site Monitoring System".) The diagnostic counters range from 0 to 255 and can only be reset to zero through the PC-PRO+ or PRO-READ software packages.

Display A nine-digit liquid crystal display with a variety of annunciators, shown in Figure 3.5, is provided on both versions of the VECTRON meter. Six large data digits are available to display all billing and information data. Three decimal points are provided for programmable resolution of billing data. 7285DWH,QGLFDWRUV

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Two of the three small digits in the upper left-hand corner of the display are used to provide code numbers to identify any display item. These three digits are used along with the six data digits to display ID numbers such as the meter serial number and user fields. Directly below the three code number digits is the Test Mode annunciator (TEST). This annunciator flashes on and off once per second while the meter is in Test Mode or Toolbox Mode. To the right of and slightly below the Test Mode annunciator is the Alternate Mode annunciator (ALT). This annunciator flashes on and off while the meter is in Alternate Mode. At the far right side of the display are the TOU rate indicators (rates A, B, C, D, and E [total]). These indicators correspond to the four programmable TOU rates and the total rate which is always active. The TOU rate indicators can be programmed to be displayed with the appropriate energy and demand.

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Operating Instructions

quantities. When an energy or demand quantity for the currently active TOU rate (A, B, C, or D) is displayed, the corresponding TOU rate indicator flashes on and off. The energy annunciators are displayed on the bottom line, to the right of the MAX annunciators. The annunciators can be programmed to display with all TOU rates. This same annunciator can be programmed to display as a demand with any demand quantity. The EOI annunciator is located to the left of the MAX annunciator on the bottom line. This annunciator turns on for four seconds at the end of each demand interval (or at the end of each subinterval when rolling demand is used). Located at the lower left-hand corner of the display are the potential indicators. Any time the voltage on phase B or phase C drops 20 percent below the lowest nominal point of the voltage range, the potential indicator for that particular phase flashes. If phase A drops below 20 percent of the lowest nominal point of the voltage range, the meter recognizes this as a power outage. At the bottom of the display is the watt disk emulator. The watt disk emulator simulates mechanical disk revolution and scrolls at a rate based on the programmed Kh value.

PROGRAMMABLE FUNCTIONS Register Programs Use PC-PRO+ software or PRO-READ software via the optical tower to program VECTRON meters. Use PC-PRO+ to generate register programs. Chapter 6, "Replacement Parts, Accessories, And Drawings" provides cable configurations for connections.

Register Selection (Demand and TOU Versions) The calculated billing quantities to be displayed are specified by the program. The following billing quantities are available for display in both Normal and Alternate Modes: • • • • • • •

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kWh Maximum kW Cumulative kW Demand (all rates supported, current and last season) Note: rate E only for 2.3 Continuous Cumulative kW Demand (all rates supported, current and last season) Note: rate E only for 2.3 Previous Demand Instantaneous kW Present Interval kW

VECTRON SVX Technical Reference Guide

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Register Selection (Extended Function Version) In addition to active energy, the extended function version of the VECTRON meter can also measure either reactive or apparent energy quantities. Use the programming software to select kWh plus three additional registers from either group A or group B: Group A

Group B

kwatts

kwatts

kvar lag

kVA lag

kvarh lead

kVA total

kvarh lag

kVAh lag

The standard unit of measure for billing quantities is kilo-, abbreviated k. PCPRO+ also allows billing quantities to be measured in “units.” The selection of “units” causes the meter to display billing quantities as a base unit without a prefix, i.e. watts. The selection of “units” as the unit of measure also will disable the annunciators referring to billing quantities. The following energy and demand registers can be programmed to display in any of the numerical formats shown in Table 3.2, Register Display Formats: •

Watt, Var, and VA Energy

•

Maximum Demand

•

Previous Demand

•

Instantaneous Demand

•

Present Demand

•

Cumulative Demand

•

Continuous Cumulative Demand

Table 3.2 Register Display Formats 0

1

2

3

X

X.X

X.XX

X.XXX

XX

XX.X

XX.XX

XX.XXX

XXX

XXX.X

XXX.XX

XXX.XXX

XXXX

XXXX.X

XXXX.XX

XXXXX

XXXXX.X

XXXXXX

All formats can be programmed for leading zeros and a floating decimal point. See the "Self-Reading Registers" section for information the self-reading registers available for the Demand and TOU versions.

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Operating Instructions

Self-Reading Registers There are up to four self-read registers available in the VECTRON SVX meters, depending on the particular verion. The demand version has one self-read register available, while the TOU and mass memory versions have four.

Data Storage The VECTRON SVX meter can automatically read and store all energy, demand, and TOU register values, along with the time and date of the self-read, in memory. The meter versions store the data differently. The demand version stores the data on its one self-read register and then overwrites it with each additional self-read. The TOU and mass memory versions store the data on the four self-read registers. The data from the first self-read is stored on “Self Read 1 Register” and the data from the second self-read is stored on “Self Read 2 Register”. The meter continues storing the data in sequential order until all 4 self-read registers are full. When the fifth self-read occurs, the meter overwrites the oldest data, which is contained in “Self Read 1 Register”. All following self-reads will continue to overwrite the oldest data, continuing the sequential pattern.

Programming If the VECTRON SVX meter is in Test Mode when a self-read is scheduled to occur, the self-read will be performed when the meter is returned to Normal Mode. Likewise, if the meter is powered down when a self-read is scheduled to occur, the self-read will be performed when the meter powers up.

The self-read registers can be programmed to read and store data at a specific time depending on the meter version. The only option for the demand version is to read and store data upon demand reset. However, the TOU and mass memory versions can be programmed to read and store data on demand reset, on a monthly schedule, or on a specified number of days after a demand reset. The meter can be programmed to perform a demand reset automatically after a self-read. For more information on demand resets, refer to the "Demand Reset" section later in this chapter.

Using PC-PRO+ programming software, an operator can reconfigure self-reads without having to fully initilize the meter.

Programmable Parameters Programmable parameters establish the meter’s configuration and define its operation in Normal, Alternate, and Test Modes. Programmable parameters specific to Test Mode can be displayed in Test Mode only. All other

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programmable parameters can be displayed in the Normal and Alternate Modes. Following are the programmable parameters used to configure either version of the VECTRON meter:

Display Scroll Time

The number of seconds (1 to 15) that each register quantity is to be displayed before the next quantity appears.

Cold Load Pickup Time

CLPU. The number of minutes (0 to 255) before demand calculations are restarted after a recognized power outage occurs. Defining this value as zero will cause demand calculations to restart after any recognized power outage.

Kh (watthour meter constant)

Kh is the energy represented by one equivalent disk revolution. Valid entries range from 0.03 to 99.9 in .01 increments. This value only affects the rate at which the VECTRON meter’s watt disk emulator scrolls and the infrared test LED pulses. Meter energy and demand values are not affected by this constant.

IR Test LED Units

(Extended function versions only) If a reactive energy register is selected, the IR LED can be programmed to drive the LED with either Wh or lagging varh.

Register Full Scale

A demand value that defines the maximum rated demand for a particular meter installation. Valid entries can be as large as 999,999 or as small as 0.001 and can be adjusted in 0.001 increments. For extended function VECTRON meters, this value is only applicable to register 1.

Register Multiplier

This multiplier is defined as CTR x VTR. The register multiplier can be displayed for information purposes, or can be used in meter calculations so that the display shows primary readings, or both. The value entered for register multiplier is not applied to instantaneous quantities. KYZ pulse weights and mass memory values will remain secondary. Care should be taken so that the display value with a register multiplier does not exceed the programmed display format. If exceeded, the display will show the correct number with one or more significant digits not displayed.

Demand Interval Length

The time in minutes (1 to 60) that each demand interval lasts before a new interval begins. Valid interval lengths are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60 minutes.

Number of Subintervals

The interval length divided by the subinterval length is equal to the number of subintervals. Valid entries are from 1 to 15 and must be evenly divisible into the demand interval length. For block demand, the number of subintervals is one. (See Table 3.3)

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Operating Instructions

Table 3.3 Typical Demand Subinterval Lengths Number of Intervals

Interval Length (in minutes)

1

2

3

4

5

6

10

15

5

5

X

X

X

1

X

X

X

15

15

X

5

X

3

X

X

1

30

30

15

10

X

6

5

3

2

60

60

30

20

15

12

10

6

4

INFORMATION DATA Normal and Alternate Display Mode Items The following items can be displayed in Normal and Alternate Modes:

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Time and Date Stamps (TOU and Extended Function versions only)

Time and Date Stamps are available for the following: Maximum Demand, Last Demand Reset, and Last Reprogram.

Time on Battery Carryover (TOU and Extended Function versions only)

Number of minutes that meter clock has operated on battery carryover.

Day Type Indicator (TOU and Extended Function versions only)

The watt disk emulator indicates the TOU day type on the display. Position 1 (far left) is a weekday, 2 is a Saturday, 3 is a Sunday, and 4 is a holiday.

Time Remaining in Interval

The amount of time in minutes and seconds before the end of the current demand interval. (Note: This option is available for 60 Hz operation only.)

Segment Test

The display illuminates all segments and annunciators on the LCD in order to verify proper operation. The watt disk emulation annunciator continues to function normally.

Meter ID

Two numbers (up to nine digits each) used to identify the meter.

User Fields

Up to three separate user fields are available to display any desired numerical information. Each user field can be up to nine digits in length.

Firmware Revision

A sequential number identifying the firmware revision level of the meter (both the front and back end). This number is automatically provided and does not require operator input.

Software Revision

A sequential number identifying the revision level of the programming software used to program the meter. This number is automatically provided and does not require operator input.

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Number of Times Programmed

A counter identifying the number of times the meter has been programmed. This counter will increment up to 9999 and will roll over to zero.

Number of Power Outages

A counter identifying the number of times the meter has recognized a power outage. This counter will increment up to 9999 and will roll over to zero.

Number of Demand Resets

A counter identifying the number of times a demand reset has occurred. This counter will increment up to 9999 and will roll over to zero.

Number of Days Since Reset

(Demand only) A counter identifying the cumulative number of elapsed days since the last demand reset. This counter will increment up to 99 and will roll over to zero.

Program ID

A three-digit number identifying the program downloaded to the meter.

Test Display Mode Items The following items can be displayed in Test Mode:

Time Remaining in the (Sub) interval

The amount of time in minutes and seconds before the end of the current Test Mode demand interval.

Time Remaining Till Test Mode Time-out

The amount of time in minutes and seconds before the programmed Test Mode time-out counter will expire and the display will return to Normal Mode. The Test Mode Time-out period is only activated if Test Mode was entered remotely through a programming device.

Test Kh

(Watthour meter constant) Valid range is from 0.03 to 600 in increments of 0.01.

Input Pulse Count

The number of pulses seen by the meter for the present Test Mode subinterval/interval. Ten pulses are counted for each revolution of the watt disk emulator.

Previous Interval Input Pulse Count

The pulse count of the previous Test Mode subinterval/ interval.

DEMAND The demand meter calculates energy values and various types of demand values such as maximum, cumulative, continuous cumulative, previous interval, instantaneous, and present demand. The meter can be programmed to calculate demand using block, rolling window, or thermal emulation.

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Operating Instructions

Demand Calculation To calculate demand, incremental energy values are accumulated over a fixed time period, depending on the demand interval length for which the meter is programmed. At the end of the interval, the energy totals are arithmetically converted to demand values. These demand values are then compared against the stored maximum demand values. If a demand value is greater than the corresponding maximum demand, it is then saved as the new maximum demand. If a demand value is less than the corresponding maximum demand, it is discarded. At the beginning of an interval, the current interval demand is reset to zero and new demand values begin accumulating. This process is carried out every time an interval or subinterval is completed. The various methods of reporting demand calculations are described below.

Block Interval Demand Block interval demand corresponds to the number of subintervals being equal to one block interval. At the end of every interval, the microprocessor compares the last completed block interval demand value to the demand value in memory. If the new value is equal to or greater than the stored value, the memory location is erased and the new demand value is stored as maximum demand. When a demand reset occurs, maximum demands are reset to zero and the current interval continues. At the end of the current interval, new maximum demand values are calculated.

Rolling Interval Demand For rolling interval demand, the programmed number of subintervals make up the demand interval. At the end of every subinterval, the microprocessor calculates a demand value based on the last full demand subinterval. When demand reset occurs, all maximum demands are reset to zero along with all completed subintervals. The current subinterval continues accumulating data and the new maximum demand value(s) is calculated at the end of this subinterval.

Rolling interval demand is available for kW only.

Thermal Demand The VECTRON meter will emulate the response of a thermal demand meter for kW and kVA (extended function meters only). This type of demand calculation is approximated exponentially. The meter will record 90% of a change in load in 15 minutes, 99% in 30 minutes, and 99.9% in 45 minutes. The four characteristics of a thermal demand meter that the VECTRON meter will emulate are:

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•

Arithmetic phase summation

•

Continuous rolling average demand

•

Response calibrated to RMS values

•

No End-of-Interval (EOI)

Cumulative Demand (SVX only) When a demand reset is performed, maximum demand values are added to the existing corresponding cumulative demand values and written into memory as the new cumulative demand values. These values remain in storage until cleared.

Continuous Cumulative Demand (SVX only) Continuous cumulative demand is the sum of maximum and cumulative demands at any time. At the end of each interval or subinterval, the calculated interval demand is compared to the previous maximum demand. If this demand is a new peak, it is stored as a maximum demand and the continuous cumulative register is adjusted to reflect the new demand. A demand reset signal clears the maximum demand value, but does not affect the continuous cumulative reading.

Previous Demand Previous demand is the stored maximum demand at the last demand reset. Previous demand is saved in nonvolatile memory when a power outage occurs.

Present Interval Demand The present demand value is the demand value at the present time normalized to the demand interval length. Present demand reports the calculated demand value as it increases from the start of a demand interval to the end of the interval. For rolling demand intervals, present demand reports the calculated demand value from the present subinterval as it is accumulating with the previous set of subintervals.

Demand Reset A demand reset can be initiated by pressing the demand reset switch or using a programming device (through the optical tower). Reset of maximum demand billing values can occur in either Normal or Alternate Mode. When a demand reset is initiated, the following takes place in the meter: 1

To indicate the demand reset, the display flashes all eights for approximately six seconds.

2

The current maximum demand values are added to the corresponding cumulative demand values. Also, continuous cumulative demand is copied to cumulative demand.

3

All maximum demand values are reset to zero and all corresponding times and dates of maximum demands are cleared (TOU only).

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Operating Instructions

4

The number of demand resets counter is incremented.

5

The number of days since reset is set to zero (demand only).

6

The date and time of last reset are updated (TOU only).

7

The normal display sequence resumes.

8

As a security feature, further manual demand resets are prevented with a one minute reset lock-out time. A remote demand reset is not subject to this delay and can be initiated as frequently as required.

TIME-OF-USE The time-of-use (TOU) function is available on TOU versions of the meter and comes standard with the extended function meters. Schedule information is programmed on a PC using the PC-PRO+ Programming software.

TOU Schedules When using the TOU functions of the meter, energy and demand registrations are segregated into time blocks during the day. Each time block is assigned one of four rate periods. In addition to these four rate periods, a total rate is always available.

Calendar Schedule The calendar schedule contains all daily and yearly information needed for the meter to measure and register data in real time. The schedule contains rate schedules, daily schedules, seasons, holidays, and Daylight Savings dates. For information concerning the entry of these parameters into the PC-PRO+ software package, consult the PC-PRO+ software user’s manual.

Rate Schedules Four independent rates are available for TOU registration. These are designated A, B, C, and D. Only one of these rates can be active at a time. The TOTAL register, designated Rate E, is always active, regardless of the active rate period.

Daily Schedules Up to four daily schedules—weekday, Saturday, Sunday, and holiday—are available. Each schedule defines the times during the day that rate period A, B, C, or D begins and ends. Up to eight rate period changes per rate may be specified for each daily schedule. Each day of the week is assigned to one of the four daily schedules. Therefore, one to four of the daily schedules can be used in any combination with the days of the week.

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Seasonal Schedules A season is a period of months during the year when a particular rate is in effect. The year can be divided into a maximum of eight seasons. If multiple seasons are not used, the TOU schedule contains one year-round season. The daily schedules (1, 2, 3, and 4) can be defined differently for each season. Up to eight season change dates are specified for each year in the calendar schedule. Season changes occur at midnight of the season change date (where midnight corresponds to 00:00 hours) or can be designated through programming to occur at the first demand reset following the season change date.

Holiday Schedules A maximum of 22 holidays per year can be designated in the calendar schedule. One of the four daily schedules is assigned to each of the holidays in the calendar schedule.

Daylight Savings Time Daylight Savings Time switch points occur at 2:00 AM on the first Sunday in April and the last Sunday in October of each year. These dates are already assigned in the calendar schedule; however, they can be modified by the user. The user can also elect not to recognize Daylight Savings Time and operate the meter in standard time only.

Registers Several energy and demand quantities can be measured by the meter. Any energy register and any demand register except previous, present, cumulative, continuous cumulative, and instantaneous can have a TOU rate schedule applied to it. The extended function version of the VECTRON meter can have a maximum of two TOU registers which follow a defined TOU schedule.

Current Season Registers All energy and demand registers selected for a specific season are considered current season registers. If a single rate schedule is applicable year-round, then only current season registers are used. Cumulative and continuous cumulative registers are not TOU functions of the VECTRON meter.

Last Season Registers Last season registers are selected when two or more seasons are used during the year. For every current season register (with the exception of the E rate continuous cumulative register) there is a last season register for the same quantity. Last season registers are designated LS in the programing software. Last season registers can be selected for display in Normal and Alternate Modes.

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Operating Instructions

Operation This section describes operation specific to the meter display. Several programmable TOU indicators are available on the liquid crystal display (LCD).

Rate Annunciators and Active Rate Indicators Rate annunciators are available with each demand and energy register. An A, B, C, D, or E will appear in the far right side of the LCD (Figure 3.5) to indicate the rate period for each quantity being displayed. If the rate annunciator is flashing while a demand or energy value is displayed, the annunciator indicates that it is the current rate in effect. This gives a quick indication that the register is programmed with the correct TOU schedule and that it is currently storing the correct time.

Season Change At the end of a specified season, all last season registers are updated with current season register data. The meter can be programmed to activate an automatic demand reset at season change. A season change occurs at midnight at the end of the programmed season change date or at the first demand reset following the season change date, depending on how the meter has been programmed. Some utilities program the season change to occur at the first demand reset following the season change date to make season changes concurrent with the meter reading cycles. The following events take place when an automatic demand reset occurs at season change: 1

The current season energy registers are copied directly to the last season energy registers.

2

The current season maximum demand registers are copied directly to the last season maximum demand registers, and E rate is added to the cumulative demand register.

3

After the demand reset, the maximum demand registers are reset to zero, and the E rate cumulative demand register is copied to the last season cumulative demand register.

If there is no demand reset at season change, all current season registers are directly copied to last season registers at season change, but no current season registers are zeroed.

Battery Carryover When the meter recognizes a power outage, it begins battery carryover operations. All billing data are transferred to nonvolatile memory at this time, and all circuits, except the timekeeping circuit and battery backed RAM, are de-energized. The timekeeping circuitry, powered by the lithium battery, keeps time while the meter is in battery carryover mode.

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Upon restoration of AC power, all self-dignostics are completed, and all data is retrieved from nonvolatile memory. The real time is retrieved from the real time clock. The elapsed time of the outage is also added to the stored value for time spent on battery.

MASS MEMORY Mass Memory Specifications The mass memory option is available on all TOU and extended function versions of the VECTRON meter.

Capacity The VECTRON meter with mass memory option provides 32KB of random access memory (RAM) for either one or two (extended function version) channels of interval load profile data. The amount of installed RAM actually used for load profile recording is programmable from 1 to 32 Kbytes in one Kbyte increments.

Bit Resolution The mass memory is configured for 12 bit data resolution. Equivalent pulse count resolution per interval is as follows: Bits

Pulse Counts

12

4,095

Interval Lengths The mass memory records data on a block interval basis. The interval length is programmable: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, or 60 minutes. The interval length is the same for all channels and is independent of the interval length for displayed demand quantities.

Power Outage The VECTRON meter can flag an interval when a power outage exceeds a specified number of seconds. The range for power outage length is programmable from 0 to 255 seconds and must not exceed the programmed interval length.

Channel Configuration The meter can be programmed to have one or two channels of interval load profile data. Each channel must correspond to an energy register selected during the programming process. If two channels are selected, one of the energy quantities must be watthours.

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Operating Instructions

Selection of channel configuration and pulse constants is accomplished through the programming software. Each data channel is programmed to record load profile data from a user selected register. The following registers can be assigned as interval pulse channels: watthours varhours (lag)* VAhours (lag)* varhours (lead)* * Available with extended function versions only

Pulse Constants For each data channel, the pulse constant is programmable from 0.02 to 999,999 unithours per pulse in 0.01 increments. As with the KYZ pulse output constants, the mass memory pulse constants apply to secondary readings only. (A watthour pulse constant of 1.8 corresponds to 1.8 watthours per pulse). Example 1: Calculation of Pulse Weight Replacing an Electromechanical Device Customer pulls 120V, CL20, 3-element, Form 9S electromechanical meter from installation. Meter Kh = 1.8 watthours/disk revolution Pulse Initiator = 4 pulses/disk revolution This electromechanical meter has the following Pulse Weight (PW): PW = Kh/PDR = 1.8 watthours/disk revolution 4 pulses/disk revolution PW = 0.45 watthour/pulse If this meter is replaced by a VECTRON meter of the same form number, voltage, and current ratings, and if the utility wants the VECTRON meter to operate the same way, the pulse weight would be entered in the configuration file as 0.45 watthours per pulse. Example 2: Calculation of Pulse Weight From kWh A VECTRON meter, 3-element, 120 volts, CL 20 is programmed so that kWh is recorded into mass memory. The maximum 12-bit data resolution is desired for 15 minute intervals. First, we must calculate the maximum watthour accumulation during 15 minute intervals. Wh, Max = (120 volts) x (20A) x (3 phases) x (0.25 hours) Wh, Max = 1800 watthours

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The maximum number of pulses is 4095; therefore, the smallest Pulse Weight (PW) that can be used is: PW, Min = 1800 Wh = 0.44 Wh/Pulse 4095 P Since this value is a multiple of 0.02, it can be entered as the multiplier for the kWh channel in mass memory.

Data Storage The VECTRON meter stores data in mass memory at the end of each interval. Each channel has 12 bits written to mass memory. For example, consider two channels of mass memory. At the end of an interval, a 12-bit number is written into memory for channel 1; a 12-bit number for channel 2 follows immediately. This process continues for each interval until sixty intervals have been recorded. The mass memory is grouped into segments of sixty intervals, or records. In addition to the profile data, each record contains the following information: • •

•

Time Tag—specifies the month, day, and hour of the end of the data block. Status Bits—there are five types of status bits written into each data block. •

Power Outage—status bit is set for each interval during which a power outage occurs (interval status).

•

Saturation—status bit is set when the pulse count for any interval in the block exceeds the data resolution (block status).

•

RAM Error—status bit is set if any memory address within the record fails the memory check (block status).

•

Field Test—status bit is set if Test Mode is activated during an interval (block status).

•

SiteScan Error—status bit is set if a diagnostic error condition occurs (block status).

Register Readings—a register reading is maintained in the data record for each channel to be used for data validation. These register readings are updated at the end of each interval.

Recording Duration Use the following equation to determine the recording duration: Recording Duration (days) = {(M • 1024 - 133)/[12 + (96 • C)]}* • I/24 M = Memory size in kilobytes C = Number of channels I = Interval length in minutes * Truncate all decimals before multiplying by I/24

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Operating Instructions

Table 3.4 shows the recording duration for a memory size of 32 kilobytes (KB). Table 3.4 Recording Duration in Days for 32 Kb of RAM Interval Length in Minutes

Days Recording for 1 Channel

Days Recording for 2 Channels

1

12

6

2

25

13

3

37

19

4

50

26

5

62

33

6

75

39

10

125

66

12

151

79

15

188

99

20

251

132

30

377

198

60

755

397

RS-232/RS-485 COMMUNICATION BOARDS The optional RS-232 and RS-485 communication boards offer serial communications with the VECTRON SVX meter. The RS-232 board supports point-to-point communications using SCS Protocol, and the RS-485 supports multi-drop communications using SCS Protocol. As shown in Figure 3.6, each board is equipped with a 12-position DIP switch for configuration options.

Figure 3.6 DIP Switch Bank

The RS-232 offers serial communication for the VECTRON SVX meter. The RS232 communication is connected through a DB-9-Female (F) pin connector. The connector is a Data Terminal Equipement (DTE) device, which allows direct connection to a Data Communication Equipment (DCE) device with a DB9-Male (M) connector.

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Figure 3.7 illustrates the connection between a VECTRON SVX meter with an RS-232 and a PC. '%)B'%0B'%)BB'%0

3&

9(& 56

1XOO0RGHP &DEOH

Figure 3.7 VECTRON SVX/RS-232 Option Board Connection With PC

Figure 3.8 illustrates the connection between a VECTRON SVX meter with an RS-232 and a modem.

'%)B'%0WR'%0BB'%)

9(&

0RGHP

56

Figure 3.8 VECTRON SVX/RS-232 Option Board Connection With Modem

Standard Features The RS-485 has the added capability of long distance communication and multi-drop networking without extra equipment needed. The RS-485 communication is connected through a RJ-11 connector. The RS-485 uses a two-wire network for communication. The omission of a ground wire in the network improves the quality of the signal. The RS-232 and RS-485 include the following: •

Addressing

•

Signal Conversion

•

Handshaking

•

Isolation

Optional Features There are four assembly options available: •

RS-232 communication

•

RS-232 communication with 2 solid-state KYZ and 1 LC

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Operating Instructions

•

RS-485 communication

•

RS-485 communication with 2 solid-state KYZ and 1 LC

Settings Table 3.5 DIP Switch Setting for Configuration DIP Switch (SW1)

Position

Settings

RTS to TX

1

ON = OFF =

(actuator closest to the board). 0 ms delay 100 ms or CTS, whichever comes first.

Address Mode

2

ON = OFF =

Must use an address to communicate to this board. Transparent Mode (no address needed)

Communication Rate

3-4

Addressing (up to 25)

5-12

3 OFF OFF ON ON 5 ON ON ::::: OFF

4 OFF ON OFF ON 6 ON ON ::::: OFF

7 ON ON ::::: OFF

Baud 1200 2400 9600 9600 8 ON ON ::::: OFF

9 ON ON ::::: OFF

10 ON ON ::::: OFF

11 ON ON ::::: OFF

12 ON OFF ::::: OFF

Address (Decimal) 00000000 (0) 00000001 (1) ######## (#) 11111111 (255)

Note: All factory settings are ON except switch #2, which is OFF.

Table 3.6 VECTRON RS232/485 Meter Losses Voltage 120 240 277 480

3-24

Phase

With RS232/485 Option Board Watts VA

Without RS232/485 Option Board Watts VA

A

1.8963

2.1435

1.2518

1.5307

B or C

<0.0001

<0.0001

<0.0001

<0.0001

A

2.2151

3.4594

1.6126

2.8791

B or C

<0.0001

<0.0001

<0.0001

<0.0001

A

2.3691

4.0494

1.7510

3.5135

B or C

<0.0001

<0.0001

<0.0001

<0.0001

A

3.2837

9.5701

2.8391

8.8830

B or C

<0.0001

<0.0001

<0.0001

<0.0001

VECTRON SVX Technical Reference Guide

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OPTIONAL OUTPUTS VECTRON meters provide optional outputs on a separate circuit board mounted beneath the main circuit board. Four versions of output boards are available: •

A form A solid-state contact and one form C solid-state relay (SVX only)

•

A form A solid-state contact and two form C solid-state relays (SVX only)

•

A form A solid-state contact and one form C mercury-wetted relay

•

A form A solid-state contact and two form C mercury-wetted relays

The solid-state form C relays can be programmed as KYZ outputs and have the same functionality as the mercury-wetted relays. Each KYZ can be programmed to output pulses proportional to the energy registers selected through programming software. The KYZ outputs can be assigned the same or different pulse weights for each energy quantity. All of the outputs can be programmed as any of the following types of outputs: Pulse Weights

KYZ pulse output constants apply to secondary readings only. Note: A watthour pulse constant of 1.8 corresponds to 1.8 watthours per pulse. Assign the secondary unit hour per pulse constants to each KYZ output. To achieve the allowable maximum resolution, the following formulas apply: Pulse Weight (Ke) = Energy / Pulse V x I (No. of Phases) Ke =  ( 3600 sec ⁄ hr ) ( 15 pulses ⁄ sec ) where V and I are the nominal voltage and current for the service. Maximum pulse rate for 60 Hz is 15 pulses/second. Maximum pulse rate for 50 Hz is 12 pulses/second.

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Operating Instructions

Demand Threshold

‡

‡

‡

N:7KUHVKROGV²WKHFRQWDFWFORVHVZKHQWKH SURJUDPPHGGHPDQGWKUHVKROGYDOXHLV UHDFKHG7KHFRQWDFWUHPDLQVFORVHGXQWLOWKH GHPDQGGURSVEHORZWKHSURJUDPPHGYDOXH DQGWKHHQGRIWKHGHPDQGLQWHUYDOVXELQWHUYDO LVUHDFKHG YDU/DJ7KUHVKROG²WKHFRQWDFWFORVHVZKHQ WKHYDUODJYDOXHH[FHHGVWKHSURJUDPPHG WKUHVKROGYDOXH7KHFRQWDFWUHPDLQVFORVHG XQWLOWKHYDUODJYDOXHGURSVEHORZWKHSUR JUDPPHGYDOXHDQGWKHHQGRIWKHGHPDQG LQWHUYDOLVUHDFKHG 9$7KUHVKROG²WKHFRQWDFWFORVHVZKHQWKH 9$YDOXHH[FHHGVWKHSURJUDPPHGWKUHVKROG YDOXH7KHFRQWDFWUHPDLQVFORVHGXQWLOWKH9D YDOXHGURSVEHORZWKHSURJUDPPHGYDOXHDQG WKHHQGRIWKHGHPDQGLQWHUYDOLVUHDFKHG

End-of-Interval

The contact closes for a period of approximately five seconds at the end of each interval/subinterval.

Independent Output 1 (TOU only)

The contact closes corresponding to the independent output number one time schedule created in the TOU schedule portion of the programming software.

Independent Output 2 (TOU only)

The contact closes corresponding to the independent output number two time schedule created in the TOU schedule portion of the programming software.

Independent Output 3 (TOU only)

The contact closes corresponding to the independent output number three time schedule created in the TOU schedule portion of the programming software.

Independent Output 4 (TOU only)

The contact closes corresponding to the independent output number four time schedule created in the TOU schedule portion of the programming software. The independent outputs can be used as indicators or as load controls.

Customer Alert A (TOU only)

The contact is closed when TOU rate A is active.

Customer Alert B (TOU only)

The contact is closed when TOU rate B is active.

Customer Alert C (TOU only)

The contact is closed when TOU rate C is active.

Customer Alert D (TOU only)

The contact is closed when TOU rate D is active.

Customer Alert E (TOU only)

The contact is closed when TOU rate E is active.

Diagnostic Condition Alert

The contact is closed when any of the diagnostic checks are triggered.

Refer to Chapter 6, "Replacement Parts, Accessories, And Drawings" for Output Board color coding.

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Output Cables A standard output cable which extends through the base of the meter as a set of pigtail leads is provided whenever an option board is supplied. An optional viking connector cable assembly is available.

KYZ outputs are not wired to the bayonets in the meter base unless they are specifically ordered this way.

OPTIONAL COMMUNICATION BOARDS R300V The R300V is an option board for the VECTRON meter that allows energy and maximum demand values to be transmitted from the VECTRON meter via radio frequency. The R300V is functionally equivalent to the ERT technology that is available on Schlumberger residential meters. The features of the board include: • • • •

Broadcast energy only for demand meters Broadcasts energy for demand and TOU meters Tamper detection All components housed within the meter

RS-232 and RS-485 The optional RS-232 and RS-485 communication boards offer serial communications with the VECTRON meter. Both boards support point-to-pint communications and multi-drop communications using SCS Protocol. The features of the boards include: • • • • • • • • •

12 position DIP switch for configuration options 2 KYZ outputs with 1 LC available Addressable (up to 256 addresses available) Signal conversion Hand shaking Isolation Baud Rates configurable (1200, 2400, 4800, 9600) DB9-F DTE connector on RS-232 RJ11 connector on RS-485

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Operating Instructions

VECTRON 2200E (SVX ONLY) The VECTRON 2200E meter enables wireless delivery of a wealth of real-time information for energy management as well as billing solutions. The information the VECTRON 2200E can deliver includes revenue metering of active and reactive power consumption data, event notification, event history, real-time meter diagnostics, power outage notification, and voltage, current and phase angle snapshot. CellNet Data Systems, Inc. developed and manufactures the 2200E option module that fits into the Schlumberger VECTRON SVX meter option board slot. The optional features of this board include: • • • • •

Active and reactive power consumption 3Ø current and voltage readings, phase angles 2 KYZ outputs Event notification Event history

MODEM (SVX ONLY) An optional 300/1200/2400 autobaud sensing internal modem provides telephone communication for data retrieval and programming of meters. The VECTRON modem will support the following telephone communication standards for initiating and receiving telephone calls: • • •

Bell 103, 300 baud Bell 212A, 1200 baud CCITT V.22bis 2400 For 2400 baud communications, the master station modems need to be fully compliant with CCITT V.22bis.

Autobaud Rate Sensing Autobaud rate sensing is available for incoming calls as a standard feature. To override the autobaud sensing, program the meter to answer at a specific baud rate (300, 1200, or 2400).

Call Windows (TOU Meters Only) Call windows are time ranges that determine when a meter will answer the phone or place calls to the master station. Different answer delays are available for inside and outside of call windows. Use PC-PRO+ programming software to download call windows. There are two programmable windows per day, and there are four day types: weekdays, Saturdays, Sundays, and holidays as defined by the TOU schedule. The windows, which can overlap, have an open and close time with a one minute resolution and a maximum length of 24 hours. The window is then

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open all day. If the customer sets the open and close time to 0 for both windows, the calling window for that day is always closed. If a call is in progress while a window closes, the call will be completed.

Answer Delays There are separate answer delays for inside and outside the call window. The value for either time delay can be 0 to 255 seconds. One ring is approximately 6 seconds. An unprogrammed meter is shipped from the factory with a preset answer delay of 45 seconds (7–8 rings). Once the meter is programmed, the preset answer delay will not be used.

Dialing Features • • •

Phone Numbers—the SVX can dial two phone numbers, each of which can contain up to 35 digits including dial modifiers. Blind Dialing—if blind dialing is enabled in the software, the SVX meter will dial the specified number even if there is no dial tone. Wait Time—if blind dialing is not enabled in the software, the modem will wait 5 seconds for a dial tone and will not dial if there is no dial tone.

For phone line simulators, Schlumberger recommends blind dialing with a two second delay.

Call On Schedule This feature permits the meter to phone the master station on a schedule. If call windows are always open and a call is not answered or is incomplete, the meter will: •

Wait a random delay of 6–255 seconds

•

Place the call

If the call is not successful, the meter will: •

Repeat the above sequence nine additional times

If all retries are unsuccessful, the meter will: •

Wait 10 minutes

•

Repeat the above call sequence

If call windows are used, the meter will use the same retry strategy but only within the specified call windows. If the meter has not reached the master station during the call window, it will wait until the following call window and restart the random retry strategy.

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Operating Instructions

Phone Home on Event The meter will call the master station when one of several events occurs. If the master station is setup to receive calls and interrogate meters, incoming calls will be logged to alert the operator that a certain condition exists. The master station must interrogate the meter for the reason it is calling. The meter will not automatically give this information. If the meter is programmed to call outside its windows, it will wait a random 6–255 seconds and place a call to the master station after an event has taken place. When the meter has a call window, the meter will wait until the window is open to make the second attempt. Only if enabled in the programming software will the meter attempt to make a call outside a call window after an event occurs. If the phone home attempts are not successful, the meter will use the retry strategy specified in the "Call On Schedule" section earlier in this chapter. The meter can be configured to phone home on the following events:

RAM/ROM Error

EEPROM Error

Low Battery or Modem Low Battery

Full Scale Overflow

Clock, Load Profile, or TOU Error

Reverse Power

Potential Loss (phase B or phase C)

Current Loss (per phase)

SiteScan Diagnostic Error (1–5)

Power Restoration

Demand Threshold Exceeded

Phone Home During Outage*

If Phone Home on Events is enabled, events programmed to call phone number 1 take precedence over those programmed to call phone number 2.

Phone Home During Outage The optional feature, Phone Home During Outage, requires special circuitry and a battery. This feature must be specified at the time of order. This feature enables the meter to make a phone call to the master station during an outage. When an outage of a specified length occurs, the meter will go through its normal power down sequence. The modem will then remain powered by the phone home during outage battery. The modem will wait a random 6–255 seconds and make a phone call to the master station. If this call is not successful, the modem will wait the random delay and make a second, and, if required, a third attempt. If the third attempt is unsuccessful, the modem will power down and make no further attempts to call during the outage.

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Off-Hook Detect The programmable off-hook feature allows the meter to use the customer’s phone line without interfering with the customer’s usage. During communications with the master station, the meter will sense an off-hook condition if the customer should “pickup” an extension phone. The meter then hangs up, and the customer has access to the phone line. The customer must hang up momentarily to obtain a dial tone. When using a parallel off-hook detect, you may need to do a few hook flashes before the modem recognizes the pick up condition. This feature must be disabled if the meter is configured for phone line sharing as either a master or a slave. The SVX meter has the hardware option of either series or parallel off-hook detect. Series off-hook utilizes an RJ31 connector and senses the current change when a customer picks up the receiver. It is connected in line with the customer’s phone line. Parallel off-hook utilizes an RJ11 connector and senses the voltage change when a customer picks up the receiver. It is connected in parallel with the customer’s phone line, similar to an extension phone. Parallel off-hook detect is a standard feature on the SVX modem.

Phone Line Sharing The Phone Line Sharing feature can connect up to five auto-answer meters to a single voice grade telephone line for remote interrogation. To facilitate phoneline sharing, each SVX modem can be configured as a master or a slave unit. Upon receiving a phone call, only a master will respond with the required handshake signal. All other SVX meters will be in “listen only” mode until the proper command addresses a corresponding slave unit and the master releases the line. At this point, the next SVX meter will come on line. It should be noted that only a master unit can be configured to “call on schedule” and “phone home on event.” When call windows are used, all windows must be identical for master and slave meters. When using the master station to call meters in a phone-line sharing situation, the master station should wait several minutes after the calling window opens so that all meters have time to set up. Blind dialing is not recommended when using phone line sharing. The phone line sharing option can be disabled. If you program the master and slave units via the modem, Schlumberger recommends that the slaves be programmed first. If the master is configured first and the carrier is lost while configuring the slaves, the slaves will require a direct connect communication resulting in having to visit each meter site.

MODEM OUTPUTS The SVX meter can include one option board—a modem or an I/O board. To enable a customer to use both features in a SVX meter, the modem is available with solid-state outputs onboard. One configuration is available for outputs residing on the modem board. This configuration consists of a modem with two solid-state Form C outputs (KYZ1 & KYZ2) and one low current, solidstate Form A (LCSS) output. No mercury-wetted outputs are available with the modem.

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Operating Instructions

MEASUREMENT TECHNIQUES The VECTRON meter samples small portions of the input voltages from the voltage and current sensing elements. Each sample is converted into a binary number and then used by the microcontroller to derive the billing values. This phase selection, sampling, and measurement process is described in the following sections.

Sampling During one cycle of the power source, the VECTRON meter takes 8 samples for each of the voltages and the currents on each of the phases. The phase A voltage is sampled first, followed by the phase A current, and then the phase B voltage, and so on. These groups of 6 samples are therefore spaced 2.08 milliseconds apart if the register is operating on 60 Hz, or 2.5 milliseconds if the register is operating on 50 Hz (see Figure 3.9).

Each group includes a sample of V and I on each of the three phases.

Figure 3.9 Sampling

Before this procedure is repeated for the next cycle, a delay is added so that the relative position of the next group of 8 samples on the waveform is shifted in time with respect to the samples taken during the previous cycle. This ensures that each group of samples is not taken at an identical point during the cycling of the signal. This technique, called sample migration, helps the VECTRON meter maintain metering accuracy under harmonic distortion conditions (see Figure 3.10).

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Two consecutive cycles have samples that are 34 microseconds or 0.75° apart.

Figure 3.10 Sample Migration

After 60 cycles, the microcontroller has a complete picture of the waveform as if it has been sampled 481 times (480 + 1 because of the migration) in one cycle (see Figure 3.11). The line synchronization signal is used to derive the time base for the sampling. It dynamically tunes the sample interval to ensure that there are always the correct number of samples regardless of the line frequency (481 samples for 60 Hz, 401 samples for 50 Hz).

One group of samples on all Vs and 1s.

After 60 cycles, the entire waveform has been sampled at 34 intervals.

Figure 3.11 Waveform Sampling

Voltage and Current Measurements During the sampling process, the voltage and current values from each phase are squared and stored in their respective accumulators. At the end of the 60th cycle, each accumulator contains the sums of the square of the voltages and currents for each phase (see Figure 3.12). The contents of these accumulators are passed to the consumption routing where they are

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Operating Instructions

averaged (divided by 481) and the square root is taken, yielding the RMS voltage and RMS current for each phase. The accumulators are reset before the first of the next set of 481 samples is taken.

Figure 3.12 Accumulator

Instantaneous Voltage and Instantaneous Current Each of the per phase voltage and current values is displayed in the Toolbox Mode. The value displayed is the RMS value calculated for the previous 60 cycles.

Watthour Measurement Watthours are measured by multiplying the instantaneous value of the voltage on each phase with the instantaneous value of the current on the same phase (see Figure 3.12). The resulting values are added to running accumulators. After the completion of 481 samples (one second for 60 Hz supply or 1.2 seconds for 50 Hz supply), the reading in this accumulator is passed to the consumption routing where it is averaged (divided by 481), scaled, corrected, divided by 3600, and then added to the main registers. The VECTRON meter can be programmed to register watthours either in the delivered quadrants only, or in the delivered and received quadrants. When delivered watthours only are measured, any negative watthour values are ignored. This has the same effect as a detent mechanism on an induction watthour meter. When delivered and received watthours are measured, any negative watthour values are made positive and added to the watthour register.

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Varh Measurement (Extended Function Version) Varhours are measured by multiplying the instantaneous value of the first available voltage sample on one phase with the instantaneous value of the third available current sample of the same phase (Figure 3.12). Since voltage samples are continually stored in a three location, last in, first out (LIFO), shift register, the first available voltage sample from the register is the one taken three samples (90° phaseshift) previous to the instant of the request for a Varh reading. Each Varh measurement is added to a running accumulator. After the completion of 481 samples (approximately one second for 60 Hz supply or 1.2 seconds for 50 Hz supply), the reading of the accumulator is passed to the consumption routine where it is averaged, scaled, corrected, and added to the main registers.

VAh Measurements (Extended Function Version) The VECTRON meter measures RMS volt-amperes using arithmetic phase summation. This method ensures that the resulting VAh value contains as much of the harmonic information as possible. Volt-ampere values are calculated by multiplying the RMS voltage value with the coincident RMS current value (see Figure 3.12) using the following formulas: VA = VRMS x IRMS where VRMS =

1  N

∑

V N2

∆→N

and IRMS =

1  N

∑

I 2N

∆→N

where N is the number of samples per second. The voltage and current values from each phase are squared and stored in their respective accumulators. At the end of the 60th supply cycle, each accumulator contains the sums of the square of the voltages or currents for each phase. The contents of these accumulators are passed to the consumption routine where they are averaged (divided by 481) and the square root is taken, yielding the RMS voltage and RMS current for each phase. Every second, the RMS voltage and the RMS current for each phase are multiplied together to establish a VA-second value for each phase. These values are scaled and corrected. The total VA hour value is calculated by adding the VA-second quantities for each phase and dividing the total by 3600. This value is added to the appropriate register. If apparent energy is selected as the extended function, the VECTRON can be programmed to calculate VA either vectorially or arithmetically on delta services. The vectorial calculation uses the following formula: VA =

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Watts 2 + Vars 2

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Operating Instructions

Notes:

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CHAPTER 4

SITESCAN ON-SITE MONITORING SYSTEM The SiteScan on-site monitoring system consists of the following features: •

Meter self-diagnostic checks

•

Toolbox Mode with its on-site and/or on-line display

•

SiteScan system and installation diagnostic checks

•

Diagnostic output alarms

Using the Schlumberger PC-PRO+ Programming software package, you can customize the SiteScan System for each individual metering site. The use of the SiteScan on-site monitoring system will greatly enhance your utility’s ability to diagnose and resolve metering or tampering problems.

SITESCAN METER SELF-DIAGNOSTIC CHECKS The VECTRON meter performs nine self-diagnostic checks to confirm proper meter operation. The following is a list of possible errors and associated error codes:

Error

Error Code

Error Type

Rom Error

Er 001000

Fatal Error

EEPROM Error

Er 000010

Fatal Error

Power-down Error

Er 111111

Fatal Error

Front-end Processor Error

Er

9

Fatal Error

Front-end Processor Error

Er

7

Fatal Error

Register Full-scale Overflow

Er 100000

Non-Fatal Error

Clock/Mass Memory Error

Er 010000

Non-Fatal Error

Reverse Power Flow Error

Er 007000

Non-Fatal Error

Low Battery Error

Er 000001

Non-Fatal Error

A fatal error indicates internal meter problems which cease all meter functions except communications. These errors cause the display to lock on the error code until the meter is re-initialized. Persistent fatal errors may require a meter change-out. The non-fatal errors can indicate either a meter problem such as

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low battery error or a site problem such as the reverse power flow error. These self-diagnostic checks can be independently enabled or disabled through the PC-PRO+ software. For a more detailed discussion of each fatal and non-fatal error, refer to Chapter 5, "Testing, Troubleshooting, And Maintenance".

SITESCAN TOOLBOX MODE SiteScan Toolbox Mode displays all the metering information used by the meter for individual phase measurements and system and installation diagnostic checks. This information helps you verify that the meter is installed and operating correctly. The per-phase volt and amp readings along with voltage and current angle readings let you check the meter’s site phase sequencing performance. The diagnostic counters alert you to the frequency of a metering or tampering problem. The combination of a diagnostic error and the information in the Toolbox Mode display will greatly enhance your utility’s ability to diagnose and resolve metering or tampering problems. In Chapter 3, access to the Toolbox Mode display list through the use of a magnet and magnetic reed switch was discussed. The PC-PRO+ software lets you retrieve the same Toolbox information on an instantaneous basis. To best understand the values on the Toolbox display, you should graphically plot this information. Before starting to plot the Toolbox data, two basic definitions must be made about the SiteScan system.

Definition 1:

The per phase information displayed in the Toolbox Mode is referenced to the internal voltage and current sensors of the meter. The meter will designate each phase by the elements. Table 4.1 defines each element.

Table 4.1 Phase Notation in Display Defined Phase

Phase Notation in Toolbox Display

Left-hand Element

Phase A

PhA

Center Element

Phase B

PhB

Right-hand Element

Phase C

PhC

Element Used in Meter

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Figure 4.1 shows how the wiring of each element determines the phase notation used by the meter.

Figure 4.1 Toolbox Phase Notation for Form 9S and 16S VECTRON Meters

Definition 2:

The SiteScan system uses the A phase voltage as a reference point. Therefore, the Toolbox Mode display of the A phase voltage angle will always be 0.0°V.

The VECTRON meter is still determining this angle and will still detect a problem if the A phase voltage angle is incorrect.

After the meter sets the A phase voltage direction to 0.0 degrees, the meter calculates all the other voltage and current angles lagging to the A phase voltage. This allows you to easily plot the vector information, not only to determine problems, but also to determine the phase sequencing of the site. Figure 4.2 provides an example of the plot for Toolbox Mode information. No matter how you elect to plot the phasor information, whether you plot the same as shown in Figure 4.2 or in the opposite direction, the Toolbox Mode will still provide an accurate representation of the site.

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Figure 4.2 Plot of Toolbox Display Mode

In this example, the plot is going in the clockwise direction; therefore, the phasors will be rotating in the counterclockwise direction. By using this information, the phase sequencing of the meter site can be determined. In the case shown, if you are stationary at zero, the first vector you will see is A phase voltage. The next voltage phasor is B phase and last is C phase voltage, indicating ABC rotation. For CBA rotation, you would still see A phase at zero, but you would see C phase voltage next followed by B phase. The following is an example of the Toolbox Mode. This example is for a Form 9S meter wired for a 4-wire wye system:

Phase A Display (Left Element)

Phase B Display (Center Element)

Phase C Display (Right Element)

Voltage Phase Angles

PhA

0.0° V

PhB

120.5° V

PhC

240.3° V

Phase Voltage

PhA

120.2 V

PhB

115.5 V

PhC

119.3 V

Current Phase Angles

PhA

9.0° A

PhB

117.8° A

PhC

246.0° A

Phase Current

PhA

6.8 A

PhB

10.2 A

PhC

9.8 A

Diagnostic Counters*

d1 000 d5A 000

d2 000 d5B 000

d3 000 d5C 000

d4 000 d5T 000

*The diagnostic counters are incremented each time a diagnostic error occurs.

If the magnitude of a phase voltage or current is zero or too low to measure accurately, dashed line (---) will appear in the value location. The corresponding angle will also indicate dashed lines. By following the definitions of the SiteScan system and the information on the Toolbox display, the above example can be graphically plotted into the phasor diagram shown in Figure 4.2. By simply viewing the phasor diagram, several facts about the site become clear:

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•

There are no wiring problems currently at the site.

•

Both A and C phase currents lag while B phase current leads its voltage.

•

The site is wired with ABC phase rotation.

By graphically plotting the Toolbox Mode display information, many metering site problems are easily diagnosed. Problems such as cross-phasing of voltage or current circuits, incorrect polarity of voltage or current circuits, and reverse energy flow of one or more phases can be found quickly. The watt disk emulator scrolling in the direction of energy flow for each phase will also aid in checking for reverse energy flow. Other problems, such as loss of phase voltage, incorrect voltage transformer ratio, current diversion, shorted current transformer circuit, or internal meter measurement malfunctions, can be determined through the Toolbox Mode. While some of these problems may occur at the time of meter installation, others may happen at any time after the meter is installed. Since it is impossible to continuously watch the Toolbox Mode information, the SiteScan on-site monitoring system has been designed to continuously monitor the site.

SITESCAN SYSTEM AND INSTALLATION DIAGNOSTIC CHECKS The SiteScan on-site monitoring system has the ability to continuously monitor the site for metering or tampering problems through the system and installation diagnostic checks. The following software programmable diagnostic checks are available:

SiteScan Diagnostic #1

Polarity, Cross-Phase & Energy Flow Check

SiteScan Diagnostic #2

Phase Voltage Deviation Check

SiteScan Diagnostic #3

Inactive Phase Current Check

SiteScan Diagnostic #4

Phase Angle Displacement Check

SiteScan Diagnostic #5

Current Waveform Distortion Check

It is very important to note that the meter will continue to operate normally while any of the diagnostic errors are being displayed. The system and installation diagnostic checks will only report that there may be a problem with the meter or site. They have no effect on metering or on any operations performed by the VECTRON meter. If enabled, all the diagnostic checks will continually check for errors every five seconds. The VECTRON meter will not check for diagnostic errors under any of the following conditions: •

When singlephase series conditions occur

•

When the meter is in Test Mode

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•

When the diagnostic(s) have been disabled by the programming software

The system reports diagnostic errors in several ways. If a diagnostic check is enabled and an error occurs, the system will always increment the corresponding diagnostic counter by one. The range for all diagnostic counters is from 0 to 255. When the counter reaches 255, it remains there until it is reset by the user. The diagnostic checks will continue to function and report any errors even after the diagnostic counter has reached 255. PC-PRO+ or PROREAD software can be used to reset the diagnostic error. Refer to the appropriate software manual for instructions to reset the errors. The system can also be programmed to report diagnostic errors directly to the meter display. If a diagnostic check has failed, the meter will display a diagnostic message similar to the one shown in Figure 4.3.

Figure 4.3 Example of Diagnostic #1 Error Display

If more than one diagnostic error condition exists, the diagnostic with the lowest number will take precedence for display. Diagnostic errors will not be shown if any fatal or non-fatal errors are displayed. Each of the diagnostic checks can be independently programmed with one of the following display options:

Lock

The diagnostic error is locked on the display. Activating the ALT/Toolbox magnetic reed switch allows the Normal Mode display sequence to scroll one time during a locked diagnostic error. At the end of the display sequence, the error message locks onto the display again. To access the Alternate Mode display list, activate the magnetic reed switch to place the meter in the Normal Mode. Wait at least one second; then activate the switch again. The meter will scroll once through the Alternate Mode display list and then once through the Normal Mode list; then lock on the error again. By activating the magnetic reed switch for more than four seconds, the meter will go into the Toolbox Mode. The display will continue to scroll through the Toolbox Mode display items as long as the switch is activated. This should allow the user time to determine what is causing the error.

Scroll

4-6

The diagnostic error will be displayed during the “Off Time” between display items. When an error occurs the meter will display the error during the next “Off Time” of the current display mode (Normal or Alternate) the meter happens to be in.

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Ignore

The diagnostic error will not be displayed on the meter. However, the diagnostic error will still increment the diagnostic counter. This option can be used to determine the frequency of an error without reporting it on the display of the VECTRON meter.

Disable

The diagnostic error will not be displayed on the meter display or increment the diagnostic counter.

The meter can also be programmed to report diagnostic errors through an output contact. Refer to SiteScan Diagnostic Condition Alert (end of this section) for more details. The meter will check for all enabled diagnostic errors every five seconds except for Diagnostic #5 which is checked at a different rate. If three consecutive checks fail, the meter will flag the error. Therefore, the meter takes approximately 15 seconds before an error is flagged. A diagnostic error may take longer to display on the meter depending on the display option chosen. Once the condition causing the error is corrected, the meter must pass two consecutive checks before the diagnostic error is cleared from the display. The auto-service sensing feature has the capability to determine the service type in which it is installed. The SiteScan system in the SVX does not require that meters be programmed for a specific service type. If any of the five diagnostic errors are enabled., auto-service sensing is automatically enabled. If the meter cannot determine a valid service type, a Diagnostic I will be reported, regardless of which diagnostic errors are enabled in the meter. An electrical service type for each meter site must be programmed into the meter for the diagnostic checks to work properly. Through PC-PRO+ and/or PRO-READ software, the service type can be programmed into the meter several different ways. Please refer to either software manual for details. The following service types can be programmed into the meter: •

Network

•

Three-wire Delta

•

Four-wire Wye

•

Four-wire Delta

The form of the meter determines which of the above service types is available for the meter. Diagrams showing all possible meter forms, their associated service types, and typical phasor diagrams are given in Figure 4.4 through Figure 4.14.

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Figure 4.4 Form 45S VECTRON Meter in a 3-Wire Network Service – Phasor Diagram

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([SHFWHGYHFWRUGLDJUDPDWXQLW\SRZHUOHYHO

Figure 4.5 Form 45S VECTRON Meter in a 3-Wire Delta Service – Phasor Diagram

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Figure 4.6 Form 45S VECTRON Meter in a 4-Wire Wye Service –Phasor Diagram

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([SHFWHGYHFWRUGLDJUDPDWXQLW\SRZHUIDFWRUZLWKEDODQFHGORDGLQJ

Figure 4.7 Form 45S VECTRON Meter in a 4-Wire Delta Service –Phasor Diagram

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7KHWRROER[ORFDWLRQRIWKH%SKDVH FXUUHQWYHFWRUIRUDHOHPHQW 9(&7521PHWHULVVKLIWHG GHJUHHVIURPWKDWRIDFRQYHQWLRQDO PHWHU

([SHFWHGYHFWRUGLDJUDPDWXQLW\SRZHUIDFWRUZLWKORDGFRQQHFWHGOLQHWRQHXWUDO

Figure 4.8 Form 46S VECTRON Meter in a 4-Wire Wye Service –Phasor Diagram

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([SHFWHGYHFWRUGLDJUDPDWXQLW\SRZHUIDFWRUZLWKORDGFRQQHFWHGOLQHWRQHXWUDO

Figure 4.9 Form 9S VECTRON Meter in a 4-Wire Wye Service –Phasor Diagram

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(CBA Rotation)

([SHFWHGYHFWRUGLDJUDPDWXQLW\SRZHUIDFWRUZLWKEDODQFHGORDGLQJ

Figure 4.10 Form 9S VECTRON Meter in a 4-Wire Delta Service –Phasor Diagram

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([SHFWHGYHFWRUGLDJUDPDWXQLW\SRZHUIDFWRUZLWKORDGFRQQHFWHGOLQHWRQHXWUDO

Figure 4.11 Form 12S VECTRON Meter in a 3-Wire Network Service –Phasor Diagram

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Figure 4.12 Form 12S VECTRON Meter in a 3-Wire Delta Service –Phasor Diagram

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([SHFWHGYHFWRUGLDJUDPDWXQLW\SRZHUIDFWRUZLWKORDGFRQQHFWHGSKDVHWRQHXWUDO

Figure 4.13 Form 16S VECTRON Meter in a 4-Wire Wye Service –Phasor Diagram

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Figure 4.14 Form 16S VECTRON Meter in a 4-Wire Delta Service –Phasor Diagram

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SITESCAN DIAGNOSTIC #1 Polarity, Cross-Phase, and Energy Flow Check The purpose of this diagnostic is to verify that all meter elements are sensing and receiving the correct voltage and current for each phase of a specific polyphase electric service. This diagnostic check may indicate one or more of the following problems: •

Cross-phasing of a voltage or current circuit

•

Incorrect polarity of a voltage or current circuit

•

Reverse energy flow of one or more phases

•

Internal meter measurement malfunction

•

Faulty site wiring

Once every five seconds, the meter determines the angle of each voltage and current phasor with respect to VA. The meter will not only display this information in the Toolbox Mode, but will judge each phasor angle for validity with respect to the meter’s form number and service type. Diagnostic #1 will take the “typical” phasor diagram for a particular form number and service type and place an envelope around each phasor where the actual phasor must be found for the diagnostic check to pass. The envelope for the voltage vectors is fixed at ±10° and the envelope for the current vectors is fixed at ±90°. The meter will recognize ABC or CBA phase rotation and will adjust the SiteScan expected values. An example would be if a typical diagram has the B phase voltage angle at 120°, and the envelope around that phasor is ±10°. Then the actual phasor must be between 110° to 130° from VA for the diagnostic check to pass that phasor. The system will check each phasor in a similar fashion. The system will define the phasor envelope for each phase. Figure 4.4 through Figure 4.14 show the ideal phasor diagrams for all possible form numbers and service types. These vector relationships assume site wiring as shown and the special case of unity power factor with balanced phase loading.

A multitude of wiring conventions, phase loadings, and power factors can exist at metering sites. Therefore, the vector diagrams obtained from actual metering sites will vary from those shown here. This should be expected and will cause no metering errors, but some unusual circumstances could necessitate reconfiguration of one or more of the diagnostics. For more information on SiteScan reconfiguration, refer to the PC-PRO+ Programming Software User’s Manual.

Diagnostic #1 Error Example This example is for a Form 9S meter wired for a 4-wire Wye system with ABC phase rotation, but the site was wired with a voltage circuit having the incorrect polarity (reverse VT).

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The first step of diagnosing an error is to place the meter into the Toolbox Mode and gather the information. The following is the information in the Toolbox Mode display while the Diagnostic #1 error is triggered:

Phase A Display (Left Element)

Phase B Display (Center Element)

Phase C Display (Right Element)

Voltage Phase Angles

PhA

0.0° V

PhB

301.2° V

PhC

240.3° V

Phase Voltage

PhA

120.2 V

PhB

120.5 V

PhC

119.3 V

Current Phase Angles

PhA

9.0° A

PhB

125.5° A

PhC

246.0° A

Phase Current

PhA

6.8 A

PhB

10.2 A

PhC

9.8 A

Diagnostic Counters

d1 001 d5A 000

d2 000 d5B 000

d3 000 d5C 000

d4 000 d5T 000

The next step is to graphically plot the above information into a phasor diagram as shown in Figure 4.15. 

9&

9% ,&



 ,$

9$

,%



Figure 4.15 Diagnostic #1 Error Diagram

By comparing the phasor diagram drawn from the information found in the Toolbox Mode with the typical phasor diagram, it becomes clear that the B phase voltage is incorrect. The correct phasor should be around 120°, not 300° where the phasor currently is. Since the phasor is approximately 180° off, this most likely represents a polarity problem with the B phase voltage circuit. Also note that diagnostic counter d1 has incremented to “001”.

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SITESCAN DIAGNOSTIC #2 Phase Voltage Deviation Check The purpose of this diagnostic is to verify that each individual phase maintains an acceptable voltage level with respect to the other phases. This diagnostic check may indicate one or more of the following problems: •

Loss of phase voltage

•

Incorrect voltage transformer ratio

•

Shorted voltage transformer windings

•

Incorrect phase voltage

•

Internal meter measurement malfunction

•

Faulty site wiring

Diagnostic #2 uses the A phase voltage (left element) as the reference voltage because it is present in all meter forms, and because the meter electronics are powered from this phase. Once every five seconds, the A phase voltage is combined with a user-defined percentage tolerance to determine the upper and lower bounds of the acceptable range for the other voltages. For Diagnostic #2 to pass, the following equations must be satisfied: VB upper ≤ (1 + x%) • VA and VB lower ≥ (1 - x%) • VA VC upper ≤ (1 + x%) • VA and VC lower ≥ (1 - x%) • VA If the above equations are not met for three consecutive checks the diagnostic check will trigger. Although the meter is using VA as a reference voltage, it does not need to be correct for this check to be valid, because the percentage difference is the determining factor.

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Diagnostic #2 Error Example This example is for a Form 9S meter wired for a 277 Volt, 4-wire Wye system, but the site has an incorrect voltage transformer ratio. The meter was also programmed with a percentage tolerance of 10%. The first step of diagnosing an error is to place the meter into Toolbox Mode and gather the information. The following is the information found in the Toolbox Mode display while the Diagnostic #2 error is triggered.

Phase A Display (Left Element)

Phase B Display (Center Element)

Phase C Display (Right Element)

Voltage Phase Angles

PhA

0.0° V

PhB

119.4° V

PhC

240.9° V

Phase Voltage

PhA

119.2 V

PhB

275.4 V

PhC

279.1 V

Current Phase Angles

PhA

9.0° A

PhB

125.5° A

PhC

246.0° A

Phase Current

PhA

6.8 A

PhB

10.2 A

PhC

9.8 A

Diagnostic Counters

d1 000 d5A 000

d2 001 d5B 000

d3 000 d5C 000

d4 000 d5T 000

The second step to diagnose a Diagnostic #2 error is to compare the different phase voltage readings. The can be done several ways by simply comparing the readings or plugging the values into the equation. In this case A phase is about 120 volts while both B and C phases are about 277 volts. This could indicate an incorrect voltage transformer ratio or a shorted voltage transformer winding for the A phase transformer. This could also indicate that A phase is correct and both B and C phases are incorrect. You will need to determine the exact problem. Also note that diagnostic counter d2 has incremented to “001”. By using the above equations and substituting in the above voltages for the upper and lower limits, we can also see why the diagnostic check has failed. For Diagnostic #2 to pass, the following equations must be satisfied: 275.4 < (1 + 10%) • 119.2 and 275.4 > (1 - 10%) • 119.2 275.4 < 131.1 and 274 > 107.3 and 279.1 < (1 + 10%) • 199.2 and 279.1 > (1 - 10%) • 199.2 279.1 < 131.1 and 279.1 > 107.3 We can see in the above equations that 275.4 and 279.1 are not less than 131.1. Further investigation can begin on the circuit to determine the cause of the problem.

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SITESCAN DIAGNOSTIC #3 Inactive Phase Current Check The purpose of this diagnostic is to verify that each individual current phase maintains an acceptable current level. This diagnostic check may indicate one or more of the following problems: •

Current diversion

•

Open or shorted current transformer circuit

•

Internal meter measurement malfuction

•

Faulty site wiring

Diagnostic #3 checks every five seconds to verify that the meter is receiving a current for each individual phase. If the meter fails three consecutive checks the Diagnostic #3 check will trigger. Once every five seconds, all phase currents are checked against a user-defined “Low Current value” to verify that the current value is above this value. If one or more currents fall below the low current value, and at least one current remains above this value for more than 15 seconds, the VECTRON meter will trigger the error. The error will not be triggered if all the currents fall below or above the user-defined value. The starting current of tranformer-rated meters is 5 mA and that of self-contained meters is 50 mA. Therefore, a selected “low current value” of 5 mA would require at least one phase above and below the starting current in order to activate the diagnostic. Refer to the PC-PRO+ or PRO-READ software manuals for instructions on how to program this value into the VECTRON meter.

Diagnostic #3 Error Example This example is for a Form 9S meter wired for a 277 volt, 4-wire wye system, but the site has a shorted current transformer. The “Low Current value” is set at 25 mA. The first step of diagnosing an error is to place the meter into the Toolbox Mode and gather the information. The following is the information in the Toolbox Mode display while the Diagnostic #3 error is triggered. Phase A Display (Left Element)

Phase B Display (Center Element)

Phase C Display (Right Element)

Voltage Phase Angles

PhA

0.0° V

PhB

119.4° V

PhC

240.9° V

Phase Voltage

PhA

276.2 V

PhB

277.7 V

PhC

277.0 V

Current Phase Angles

PhA

9.0° A

PhB

---------

PhC

246.0° A

Phase Current

PhA

11.8 A

PhB

---------

PhC

5.2 A

Diagnostic Counters

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d1 000 d5A 000

d2 000 d5B 000

d3 001 d5C 000

d4 000 d5T 000

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The second step to diagnose a Diagnostic #3 error is to compare the different phase current readings. In this case A and C phases both have current passing through the elements, while B phase (center element) has no current. The dashes indicate that current has fallen below 0.5% of class. This could indicate an open or shorted current transformer or current diversion. Also note that diagnostic counter d3 has incremented to “001”.

It is possible to see dashes where the current information should be, but have no Diagnostic #3 error present. (See the "SiteScan Toolbox Mode" section earlier in this chapter for more information.)

SITESCAN DIAGNOSTIC #4 Phase Angle Displacement Check The purpose of this diagnostic is to verify that the current elements are sensing and receiving the correct current for each phase of a specific polyphase electric service. This diagnostic check may indicate one or more of the following problems: •

Poor load power factor conditions

•

Poor system conditions

•

Malfunctioning system equipment

Diagnostic #1 must be enabled and must pass for Diagnostic #4 to be enabled and check for a problem. This will allow the system to make the assumption that all the phasors are in the relatively correct orientation and that there is no wiring problem. Since the voltage angles passed diagnostic #1, the meter will assign the voltage phasors to be constant at the typical phasor angle. See Figure 4.4 through Figure 4.14 for a description of each phasor diagram. If Diagnostic #1 passes, the meter will then determine the angle of each current phasor with respect to VA for Diagnostic #4. The meter will judge each current phasor angle for validity with respect to the meter’s form number and service type. Diagnostic #4 will take the “typical” phasor diagram for a particular form number and service type and place a user-defined envelope around each current phasor, where the actual phasor must be found for the diagnostic check to pass. An example would be if a typical diagram has the C phase current angle at 240° and the user has programmed an acceptable envelope of ±45° around that phasor. Then the actual phasor must be between 195° to 285° from VA for the diagnostic to pass that check. The system will check each current phasor in a similar fashion (see Figure 4.16). The current vector must be within ±45° of the voltage vector for Diagnostic #4 to pass.

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Figure 4.16 Envelope Example

Diagnostic #4 Error Example This example is for a Form 9S meter wired for a 4-wire wye system with ABC phase rotation, but the site has a poor load power factor condition. The meter was programmed with a tolerance level of ±45° for Diagnostic #4 and Diagnostic #1 was also enabled and has already passed. The first step of diagnosing an error is to place the meter in to Toolbox Mode and gather the information. The following is the information in the Toolbox Mode display while the Diagnostic #4 error is enabled.

Phase A Display (Left Element)

Phase B Display (Center Element)

Phase C Display (Right Element)

Voltage Phase Angles

PhA

0.0° V

PhB

120.4° V

PhC

239.8° V

Phase Voltage

PhA

120.8 V

PhB

120.0 V

PhC

119.3 V

Current Phase Angles

PhA

2.0° A

PhB

119.8° A

PhC

297.2° A

Phase Current

PhA

6.8 A

PhB

10.2 A

PhC

9.8 A

Diagnostic Counters

d1 000 d5A 000

d2 000 d5B 000

d3 000 d5C 000

d4 001 d5T 000

The next step is to graphically plot the above information into a phasor diagram as shown in Figure 4.17.

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Figure 4.17 Phasor Diagram

By comparing the phasor diagram drawn from the information found in the Toolbox Mode versus the typical phasor diagram, it becomes clear that the C phase current is out of the user-defined envelope. The correct phasor should be around 240.0°, not the 297.0° where the phasor currently is. This is not a problem with the meter or a wiring problem at the site, but it does indicate a poor load power factor condition which may need to be corrected. Also note that diagnostic counter d4 has incremented to “001”.

SITESCAN DIAGNOSTIC #5 Current Waveform Distortion Check Diagnostic #5 detects DC on a per phase basis using what is know as a comb filter method. Rectified loads produce even harmonics which are typically in phase with the voltage signal. The algorithm works by summing current samples, which occur 90° after every zero crossing of the voltage waveform. This information is accumulated for a sample interval. These sample points should represent peak current values. If no DC is present on any of the phases, the current waveforms will be symmetrical and the accumulation of the current samples will be a value near zero. If DC is present on a phase, the current waveform is offset vertically and the accumulation of the current samples will be significantly higher. Diagnostic #5 will trigger when the level of DC present is such that the accuracy of the VECTRON could be affected. This level varies for different installations based on the per phase load conditions. When DC current is present, the VECTRON can be programmed to display the diagnostic #5 error code in the same manner in which diagnostics #1 through #4 are programmed (i.e. lock, scroll, ignore). The number of times DC was present is available through meter communications on a per phase basis. The number of times that DC was present on all phases is available by accessing the Toolbox Mode and viewing the diagnostic #5 counter or through meter communications.

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Unlike the other diagnostic errors, the fifth diagnostic error is updated every 45 seconds. One phase at a time is checked for five seconds for three consecutive checks. If the three consecutive checks on any phase fail, the error code will display after all the phases have been checked. The error code will clear when all the phases pass two consecutive checks (about 30 seconds).

DIAGNOSTIC CONDITION ALERT The SiteScan diagnostic condition alert is an output which is activated if any of the diagnostic checks are triggered. All errors will drive a single output contact (mercury-wetted or solid-state). If selected, this output will be updated once per second. Through the PC-PRO+ software, each diagnostic output can be enabled or disabled independently. This allows the meter’s diagnostic condition alert to be tied to one specific, two different, or all diagnostic errors. The output can then be tied to several different devices to help determine the actual time an event occurred or the frequency at which errors are triggered.

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Notes:

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CHAPTER 5

TESTING, TROUBLESHOOTING, AND MAINTENANCE This section provides information and instructions to help you test and maintain the VECTRON and VECTRON SVX meters. Topics covered include: •

Testing support features

•

Energy testing

•

Recommended testing procedures

•

Demand testing

•

TOU schedule testing

•

Field testing

•

Troubleshooting (fatal and nonfatal errors)

•

Maintenance

TESTING SUPPORT FEATURES Infrared Test LED The meter is equipped with an Infrared Test Light Emitting Diode (LED) which represents watthour measurement. The LED is located at the three o’clock position on the meter faceplate (Figure 5.1). The pulse weight represented by the LED is programmable through the PC-PRO+ programming software. The programming software allows a different pulse weight value for the LED in either the Normal or Test Modes. The extended function version of the meter can be programmed to drive the IR LED with the Wh or lagging varh if reactive energy is selected as an extended function register.

Figure 5.1 Infrared Test LED

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Annunciators Watthour Disk Emulation Annunciator The VECTRON meter is equipped with a bidirectional Liquid Crystal Display (LCD) watthour disk emulation annunciator. The disk emulation annunciator consists of five segments located in the lower portion of the display. These segments are individually illuminated and traverse left to right for positive (line to load) energy flow. The segments will traverse right to left for negative (load to line) energy flow. The rate of segment travel is proportional to the programmed watthour constant (Kh value).

If the IR LED is programmed to be driven by lagging varh, the watt disk emulator will also be driven by lagging varh.

Voltage Indicator Annunciators The VECTRON meter is equipped with three LCD voltage indicator annunciators. They are located in the lower left portion of the LCD display. Illuminated annuncaitors (VA, VB, and VC) indicate active voltage for these respective phases. A flashing annunciator indicates a loss of voltage.

TOU Rate Annunciators The VECTRON meter is equipped with five TOU rate annunciators on the LCD. Located on the right side of the display, the annunciator A, B, C, D, or E flashes when the applicable rate is active and is enabled to display the register values with their respective rate.

Test Mode Annunciator The VECTRON meter is equipped with a Test Mode LCD annunciator. Located in the left portion of the display, this annunciator is enabled when Test Mode is activated. The word “TEST” appears on the display and flashes at a steady rate during Test Mode activation.

ENERGY TESTING Testing With the Infrared Test LED Verification of metered kWh or kVarh (extended function versions only) values by the meter can be accomplished by using the pulsing LED located in the 3 o’clock position of the faceplate.

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With a constant load applied, the LED pulses are compared to the output of a conventional high accuracy watthour standard. This is accomplished using a compatible optical pickup device and a comparator. Follow these steps to test the Wh LED: 1

Program the meter with a desired pulse constant Kh.

2

Apply a constant delivered watts load (Wapp) to the meter.

3

Verify that the LED pulses properly either by counting the pulses or using a comparator to compare pulses from the meter under test to the standard. To determine the number of pulses per second, use the following equation:

4

#Pulses/sec = Wapp x N x 1 hour x 1 3600 sec Kh where N is the coil factor for singlephase test method (Table 5.1). The same for the field Test Mode, if desired.

If accuracy or repeatability is poor, the Kh may be incorrect or the “settling time” in the test bench must be adjusted. (Schlumberger recommends a 4–5 second settling time.)

Testing With Pulse Initiator Outputs The VECTRON meter provides up to two Form C, KYZ pulse outputs when equipped with the optional I/O Board. The KYZ pulse output provides an alternative to the infrared Wh LED pulse output for test purposes. With the extended function version of the VECTRON, one of the KYZ outputs can be programmed for either varh or VAh. Connection to either the KY or KZ terminals will allow input to the test board. However, this configuration will provide only one-half the number of pulses for the programmed Kh value (pulse constant).

Example The meter is programmed with a KYZ pulse constant for watts of 1.8 Wh/pulse. This indicates that the KY terminal pair will pulse at a rate of 3.6 Wh/pulse. The same holds true for the KZ terminal pair. If the KY terminal pair is to pulse at a rate of 1.8 Wh/pulse, the programmed KYZ constant must be 0.9 Wh/pulse. The KYZ output(s) can also be connected to an external recorder to verify the proper number of pulses.

Testing Using the Disk Emulation Annunciator The VECTRON meter is capable of visually being tested by using the Wh disk emulation annunciator. As further discussed in the Wh disk emulation annunciator section, the Wh disk emulation annunciator scrolls at a rate proportional to the programmed watthour constant. If the IR LED is programmed to be driven by lagging varh, (extended function versions only) the watt disk emulator will also be driven by lagging varh.

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Testing, Troubleshooting, And Maintenance

If the emulator is flowing right to left, this indicates a reverse power flow situation.

Testing Using the Energy/Time Method As an alternate to the above methods, the energy accumulated by the registers and a reference standard can be read directly from the display and compared over a period of time. Energy readings displayed while the meter is in the Test Mode are in floating decimal format. This will result in maximum resolution for short duration tests. If the meter is being tested using singlephase test methods, a coil factor must be included in the calculations. See Table 5.1 for the appropriate factor.

Table 5.1 Coil Factors Form

1

2

3

Series

A Phase Only

B Phase Only

C Phase Only

451, 12, 66

2

1

—

1

9(8)2, 16(15,14)

3

1

1

1

463

4

1

2

1

2

1

0.5

—

0.5

When testing Form 45 VECTRON meters, the two voltage blades or terminals on the load side of the meter must be shorted. If these blades are not shorted, the meter will not power up during testing. In a field installation, the external wiring provides the necessary shorted connection. It is important to note that these two blades are NOT to be shorted when the meter is installed in the field. For applications where a Form 45 VECTRON meter is to be installed on a 4-wire delta installation, please contact your Schlumberger Sales Representative for information concerning the testing of the third voltage divider on the load side of the meter. When testing under true polyphase conditions, Forms 9 and 16 can only be tested as a 4-wire wye. These forms cannot be tested as 4-wire deltas because of present limitation inherent in the test equipment.

2 1/2 Element Meter.

RECOMMENDED ENERGY TESTING PROCEDURES Introduction Testing solid-state meters on test boards designed primarily for electromechanical meters may sometimes give unexpected results. Erroneous readings could occur on light-load tests when the test sequence calls for a light-load (LL) test following a full-load (FL) or power-factor (PF) test. In some cases, PF readings could also be in error when following a FL test. The errors are always positive and may be a few percent for PF and even greater for LL. The problem is aggravated on lower voltages and when using large test constants, Kt, similar to the typical Kh values of comparable induction meters. This problem does not exist on modern test boards with their latest software.

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Test Description A typical meter test sequence consists of: 1

The voltage and current ramp up at unity power factor to the FL level.

2

A pulse from the meter starts the FL test and another pulse ends it.

3

The phase angle then changes for the PF test. The current may stay at the FL level or ramp down to zero and back up for the phase angle change.

4

A pulse from the meter starts the PF test and another pulse ends it.

5

The current ramps (directly or through zero) to the LL current level at unity power factor.

6

A pulse from the meter starts the LL test and another pulse ends it.

Most test boards use jogging (slewing) immediately following a FL or PF test to shorten the time required for the next test to start. The energy used for jogging may be more than enough to cause the next pulse from the meter, even before the ramping of current or changing of phase angle is completed. If the trigger to start the next test is armed and ready during the jogging or transition to the next test level, an unexpected pulse may cause the test to start too soon. This obviously will result in erroneous readings. Some settling time is necessary for the test board power, the reference standard, and the meter under test to stabilize after the change to a new test level. Most test boards provide a settling time (programmable or fixed) and will not recognize another test pulse following the completion of a test until the jogging, ramping, and settling time have all transpired. The VECTRON meter needs a settling time of about four or five seconds after the new test level has been reached before the test starts.

Recommendations Erroneous test results caused by the problems previously described can probably be corrected by implementing one of the following suggestions. Even if there are no bad readings, Solution 3 can cut the total test time significantly without sacrificing accuracy. The suggested solutions are: 1

Change the test sequence to avoid jogging before the light-load test.

2

Upgrade the test board to meet the requirements listed previously.

3

Program the meter and test board for a small test constant. This will avoid jogging and also give the added benefit of shorter test time.

Solution 1 Change the test sequence so that the LL test is first, followed by the PF test and then the FL test. This should prevent all jogging from occurring between tests and will probably eliminate the erroneous readings. This is the quickest solution to implement since it requires no changes to the test board or the meter.

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Solution 2 Install the latest test board software revision. A test board ideally should recognize no new test pulses after the completion of a test until jogging, ramping, and settling time have all transpired. Settling time should be programmed for four to six seconds. There is nothing to be gained by using settling times greater than six seconds.

Solution 3 This is the preferred solution, since it results in shorter test times and can be implemented simply by programming the meter for a smaller test constant and settling the test board accordingly. The VECTRON and most other solid-state meters have the capability of being programmed for a much smaller test constant (Kt), such as one-tenth or onetwelfth of the energy required for one disk revolution of an electromechanical meter. With the test pulses running 10 to 12 times faster there is the possibility of shortening the test time considerably, but not by a factor of 10 or 12. It still takes a finite amount of time to obtain meaningful results.

Recommended Test Setup for Minimizing Test Time The following settings are recommended for obtaining test uncertainties of less than 0.1% and at minimum test times: 1

Program the test board settling time for five seconds.

2

Program the meter and test board for a small test constant, Kt, in some convenient fractional value of the traditional Kh. For this example, 1/12 of the traditional Kh of the equivalent electromechanical meter is used. (The use of decimal values may be preferred for simplification of math.)

3

Use 12 pulses (1 rev) for FL.

4

Use 12 pulses for PF.

5

Use 1 pulse for LL.

6

For element tests, the FL and PF pulses can be divided by the number of elements, always rounding up for fractional values.

The total test time for a series FL, PF, LL sequence can be shortened by more than one minute compared to the time required for an electromechanical meter or a solid-state meter using the equivalent test constants. If LL element tests are used, the time savings will be much greater.

Recommendations for Minimum Variability The variability of testing a VECTRON meter can be reduced by lengthening the test times (using more pulses). Doubling or tripling the recommended minimum test time will reduce the variability by a factor of two or three. Very little improvement is realized by running longer than about 45 seconds for each test.

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DEMAND TESTING Testing consists of comparing the readings displayed on the VECTRON meter to the actual demand, as determined using a high-accuracy, RMS responding reference standard. The standard should have pulse outputs proportional to Wh/pulse and VAh/pulse. Pulses from the reference standard are accumulated over one demand interval, and then the total pulse count representing watthours is converted to an average demand value using the formulas in the Demand Calculations section. Because of the high accuracy of the VECTRON meter, the following is the recommended procedure for testing these meters.

Demand Test Method 1

Connect the meter under test and the reference standard in the same circuit, with all voltage coils in paralled and current coils in series, as per standard meter testing procedures (see Figure 5.2).

Figure 5.2 Test Connections

2

Apply rated voltage to the meter under test and the reference standard. Set the test current to the desired level (FL, LL, or PF test amps; or any desired level within the meter rating). To ensure that the supply polarities are correct, check that the Watthour Disk Emulation Annunciator is traversing in the forward direction. Switch off only the current to both the meter and the standard.

3

Reset and enable the pulse counting device.

4

Put the VECTRON meter into Test Mode by pressing the Test switch. Once this has been done, push in the Demand Reset switch to zero the test registers and start a new demand interval.

5

Start the test by switching on the current to all meters and the reference simultaneously.

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Table 5.2 Singlephase Test Constants (SPTC) Form

1

∆

Series

A Phase Only

B Phase Only

C Phase Only

0.866

0.866

—

.866

1

1

1

1

0.911

.866

.0866

1

45 or 12

3Ø, 3W,

461

3Ø, 4W,wye

9 or 16

3Ø, 3W,

9, 16, or 14

3Ø, 4W, wye

1

1

1

1

45 or 12

3Ø, 3W, wye

1

1

—

1

∆

2 1/2 Element Meter

6

The End-of-Interval (EOI) flag will appear for five seconds in the display after the end of the demand interval. At this time, switch off the current to all meters simultaneously and stop the pulse count. Do not disconnect the voltage to the meter.

7

Record the pulse counter total and the values displayed on the VECTRON meter.

8

Perform calculations A, B, C, and D (extended function versions only) in the demand calculations section and compare the results.

This test method is valid for kWh, kVAh, kvarh, kW, kVA, and kvar at any load or power factor.

Demand Calculations Calculation A: Actual Active Energy (kWh) Actual active energy is calculated using the following formula: kWh =

Pt x Kh x N/1000

where:

Kh = Watthours per pulse output value from the reference standard. (A watt and/or a VA standard similar to the Schlumberger Type A8 or A9 must be used.) Pt =

Total pulses accumulated from the reference standard

N=

Coil factor (Table 5.1)

Pre-calculate the total pulses expected with the following formula to ensure that the comparator display does not overflow: Pt = V x I x T/(Kh x 60) where:

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V=

Voltage applied to standard

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I=

Current applied to standard

T=

Test Mode demand interval length in minutes (i.e., one minute for block interval, one minute times number of updates for rolling interval.).

If Test Mode display is in watthours (Wh), divide by 1000 to get kWh.

Calculation B: Actual Active Demand (kW) Actual active demand is calculated using the following formula: kW =

kWh x 60/T

Calculation C: Actual KVA Hours kVAh =

PT x Kh x N/ (1000*SPTC)

where:

N = Coil factor (Table 5.1) SPTC = Single phase test constant (Table 5.2)

Calculation D: Actual kVA Demand kVA =

kVAh x 60/T

TOU CALENDAR SCHEDULE TESTING This section contains information on shop tests that ensure the correct operation of the TOU calendar schedule. Schlumberger recommends that this type of test be employed at least once for each new calendar schedule and/or daily rate schedule. Program the TOU schedule into the meter using the programming software.

Daylight Savings Time Recognition Set the time to 23:59 on the previous day to Daylight Savings Time (DST). Confirm that at 02:00 on the date of the change to/from DST the time advances one hour in the switch to DST or retards on hour in the switch back to Standard time.

Daily Schedules for Season Set the time to 00:00 on the first day in this season. To verify each daily switch point, advance the time to at least one minute before the next switch point. To verify proper register switching, allow the meter time to pass through the switch point and observe the accumulation of kilowatthours in each register, or verify the change in flashing rate annunciators. A flashing rate annunciator

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Testing, Troubleshooting, And Maintenance

indicates that its associated register is ON. The annunciator does not flash when the register’s display if OFF. Repeat this procedure for each switch point for every day of the week.

Customer Alerts If customer alerts have been specified, verify that they close when their respective rate schedules are active. Refer to Chapter 6, "Replacement Parts, Accessories, And Drawings" for the pin assignments of the customer alerts and to the section, "Outputs (Optional)" in Chapter 1 for the operation of customer alerts.

Independent Output Daily Schedules for Current Season Set the time to 00:00 of the first day of the season. To verify each daily switch point, advance the time to at least one minute before the next switch point. Allow the meter time to increment through the switch point and verify that the Independent Output contact closes according to the programmed schedule. Refer to Chapter 6, "Replacement Parts, Accessories, And Drawings" for pin assignments of the independent outputs and to the section, "Outputs (Optional)" in Chapter 1 for operation. Repeat this procedure for each switch point for every day of the week.

Holiday Schedules for Each Specified Holiday Set the time to 00:00 on the first holiday. To verify each switch point, advance the time to at least one minute before the next switch point. Allow the meter time to advance through the switch point and confirm that the proper registers were switched. Observe the accumulation of kilowatthours in each register, or verify the flashing of the respective rate annunciators. Repeat this procedure for each switch point of every holiday specified.

Change Dates Set the time to 00:00 of the first day of the next season and repeat the steps outlined in Daily Schedules above. Repeat the procedure for each of the seasons specified.

FIELD TESTING Field testing of the VECTRON meter may be accomplished with conventional methods using either the infrared test pulses or the disk emulation annunciator.

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Required Hardware The typical field test setup consists of a phantom load, a portable standard, and an infrared test pulse adapter with counter or snap switch assembly.

Test Method Using Infrared Pulse Adapter The pulse adapter runs the test for a programmed number of pulses. The number of pulses is set on the test pulse adapter by the use of counter switches. The adapter will automatically start the test when the START COUNT button is pressed. When the test begins, the test pulse adapter counts the pulses it receives from the meter until the programmed number of pulses have been received. When this occurs, the pulse adapter automatically shuts off the portable standard. The standard then displays the number of equivalent disk revolutions which is then compared to the number of pulses for the test.

Test Method Using a Snap Switch Assembly This method is similar to the above except starting and stopping of the standard is performed manually. To conduct the test, the technician observes the position of the disk emulation annunciator and simultaneously starts the standard through the snap switch. A hash mark just below the LCD is provided for easy reference. After observing a predetermined number of emulated disk rotations, the technician stops the standard with the snap switch. A comparison is then made between the predetermined number of emulated disk rotations and equivalent disk rotations indicated on the watthour standard.

TROUBLESHOOTING Fatal Errors Fatal errors cause the display to lock on the error code because of the possibility that billing data may have been corrupted, or that the meter may not be operating correctly. If multiple fatal errors occur, the one that was detected first will be the error code that locks on the display. The VECTRON meter will check for fatal errors:

‡ ‡ ‡

ZKHQSRZHULVUHVWRUHGWRWKHPHWHUIROORZLQJDSRZHUIDLOXUH ZKHQDPHWHUUHFRQILJXUHLVSHUIRUPHG HYHU\ILIWHHQVHFRQGVZKLOHWKHPHWHULVHQHUJL]HGIURQWHQGSURFHVVRUHUURU RQO\

Fatal errors are cleared when they are corrected and the meter is reprogrammed.

VECTRON SVX Technical Reference Guide

5-11

Testing, Troubleshooting, And Maintenance

Er 001000

ROM Error Possible Cause: ROM failure—Reprogram meter and check for proper operation. If error still does not clear, return the meter for repair. Description: If the meter has a ROM error, the error code Er 001000 will be continuously displayed. If this error occurs, program the meter and check for proper operation. If the error continues to exist, return the meter for repair.

Er 000010

EEPROM Error Possible Cause: Meter Not Programmed—Download proper meter program via programming software. If the error still does not clear, return the meter for repair. Description: If the meter has an EEPROM error, the error code Er 000010 will be continuously displayed. If this error occurs, program the meter and check for proper operation. If the error continues to exist, return the meter for repair.

Er 111111

Power Down Error Possible Cause: Power Down Error—Reprogram meter and check for proper operation. Description: A power down error exists when the microprocessor receives a reset before all billing values are correctly saved to nonvolatile memory. If a power down error occurs, the error code Er 111111 will be continuously displayed. If this error occurs, program the meter and check for proper operation through two complete power down and power up sequences. If the error continues to exist, return the meter for repair.

Er - - - - -7

Front End Processor Error Possible Cause: Front end processor failure. Return the meter for repair. Description: An unrecoverable fatal error has occurred upon power up in the front end microprocessor. Return the meter for repair.

Er - - - - -9

Front End Processor Error Possible Cause: Front end processor failure. Return meter for repair. Description: An unrecoverable fatal error has occurred in the front end microprocessor. Return the meter for repair.

Non-Fatal Errors Non-fatal errors can be programmed to scroll during the one second display off-time or lock on the meter display. If multiple non-fatal errors occur, the meter will display a combined error message. For example, if a low battery error and a clock error exist, the error display will read Er 010001. In this case, if one of the errors had been programmed to lock, and the other error had been programmed to scroll, the display will lock on the combined error message.

5-12

VECTRON SVX Technical Reference Guide

7HVWLQJ7URXEOHVKRRWLQJ$QG0DLQWHQDQFH

Activating the magnetic reed switch allows the Normal Mode display sequence to scroll one time during a locked non-fatal error. Activating the magnetic reed switch twice allows the meter to scroll first through the Alternate Mode display items and then through the Normal Mode display items. At the end of the display sequence, the error message locks onto the display again. Each error check is performed upon initial power-up, upon programming, upon restoration of power after an outage, and at least once each day.

Er 000001

Low Battery Error Possible Causes: Battery Voltage Low—Replace battery. Battery Connector Not Connected Properly—Connect battery securely. Description: A low battery check is performed once every second. If a low battery level is detected during this procedure, error code Er 000001 can be displayed in Normal Mode. This error can be programmed to continuously scroll during the one second display off time or lock on the meter display. A low battery continues to function; however, its reliability decreases over time. If a low battery level is detected upon programming or upon restoration of power after an outage, Er 000001 will display until the battery is replaced. TOU and mass memory functions will be disabled until the battery is replaced and the meter is reprogrammed. Total registers remain functional during a low battery condition. However, TOU (rates A, B, C, D) registers will not accumulate. If a low battery level error occurs during normal operation, TOU and mass memory will continue to operate until an outage occurs. As an option, the VECTRON meter can be programmed to continue with mass memory and TOU operations if a low battery level is detected upon restoration of power after an outage. These operations will continue until the battery can no longer supply the necessary voltage to keep these functions operational. If this option is selected and the mass memory and TOU functions can no longer operate, the VECTRON may lock up. To view the data if the meter locks up, remove the battery and cycle the power. To retain billing data for TOU, the battery must be replaced with the power applied to the meter.

VECTRON SVX Technical Reference Guide

5-13

Testing, Troubleshooting, And Maintenance

Er 010000

Clock/Mass Memory Error Possible Cause: Clock/Mass Memory Error—Reprogram meter and check for proper operation. Description: A Clock/Mass Memory error exists when a clock or mass memory parameter is determined to be out of range. If this error occurs, Er 010000 is displayed in Normal Mode. This error is programmable to continuously scroll during the one second display off time or lock on the meter display. If a clock/mass memory error occurs, the mass memory and TOU operations will be discontinued until the meter is reprogrammed. The error will then clear and the meter will resume normal operation. As an option, the VECTRON meter can be programmed to continue with mass memory and TOU operations if an Er 000001 error exists and a power outage occurs. These operations will continue until the battery can no longer supply the necessary voltage to keep these functions operations. If this option is selected and the mass memory and TOU functions can no longer operate, the meter may lock up. To view the data if the meter locks up, remove the battery and cycle power.

Er 10000

Full Scale Overflow Error Possible Cause: Programmed Full Scale Value Exceeded—Check programmed full scale value and meter installation for proper sizing of equipment. Description: A Full Scale overflow error exists when the calculated demand at an EOI exceeds the meter full scale value. The meter full scale value is selected during programming. If an overflow occurs, the error code Er 100000 is displayed in Normal Mode. This error is programmable to display during the one second display off time, or lock on the meter display. The full scale overflow error displays after the interval during which the overflow occurred. The maximum demand register continues to accumulate and display kW as long as the format limitations are not exceeded. When a demand reset is performed, the correct maximum kW value will be added to the cumulative registers and the error code will no longer be displayed. If a full scale overflow occurs, check the installation to ensure that the current metering capability has not been exceeded. A full scale overflow in no way affects the existing billing data.

Er 007000

Reverse Direction Error Possible Cause: Reverse Direction Error Indicator—Clear on demand reset, or wait 31 days (TOU & mass memory meters), or reprogram meter. Description: A Reverse Direction error exists when the meter detects one complete and continuous equivalent disk revolution in the reverse direction. This error is applicable to kWh only. Reverse direction detection is a selected feature during programming. If a reverse direction error occurs, Er 007000 is displayed during the one second off time in Normal Mode. This error is reported regardless of whether the meter is detented or undetented. The reverse direction error will clear when a demand reset is performed or, for TOU and mass memory meters, after 31 days have elapsed since the reverse rotation was detected.

5-14

VECTRON SVX Technical Reference Guide

7HVWLQJ7URXEOHVKRRWLQJ$QG0DLQWHQDQFH

Other Problems Demand Reset Cannot Be Initiated Through PC or Handheld •

Communication cannot be established. See Programming Problems.

Incorrect or No Accumulation of kWh or kW •

Demand Delay Selected—kW will not accumulate after a power outage if CLPU (demand delay) has been selected. Accumulation will begin immediately after demand delay has expired. Verify meter program and reconfigure meter.

•

Meter Was Left in Test Mode—Accumulation of kW or kWh will not take place while meter is in Test Mode. Exit Test Mode and verify that proper accumulation begins.

•

Component Failure—Return the meter for repair.

•

Meter is not being tested properly—See Recommended Testing Procedures in that section.

Reset Mechanism Does Not Initiate Demand Reset •

Reset Has Occurred Within Last 60 Seconds—Manual demand reset cannot occur within 60 seconds of the previous demand reset. Wait 60 seconds and perform a second demand reset.

Blank Display •

Power Not Applied to Meter—Apply voltage to A phase.

•

LCD/LCD Driver Failure—Return meter for repair.

Time and Date Wrong (TOU and Extended Function Versions) •

Time/Date Wrong in PC or Handheld Device—Verify and update time/ date in programming device and download new time and date to meter. See appropriate software manual for more detailed directions.

•

Wrong Line Frequency—Verify proper line frequency is selected in Setup routing in programming software. Select proper frequency and reconfigure meter.

•

Battery Failure During Power Outage—Verify battery voltage. Replace battery and download new time and date.

•

Daylight Savings Time Not Programmed Correctly—Verify DST is selected in program. Reconfigure meter with correct program.

•

Timekeeping Circuitry Component Failure—Return meter for repair.

Optional Output Contact Closures Not Occurring •

Meter Improperly Programmed—Verify all required programmable values were defined.

•

Output Wiring Not Properly Connected—Verify wiring and correct.

•

Meter Not Supplied with Output Electronics—Retrofit proper output circuitry.

VECTRON SVX Technical Reference Guide

5-15

Testing, Troubleshooting, And Maintenance

•

Option Circuit Board Component Failure—Replace Option Board.

•

Main Circuit Board Component Failure—Return meter for repair.

Programmer Cannot Communicate with Meter •

Optical Probe Cable Assembly Failure—Check cable with known meter that communicates. Check cable against known cable that is functioning. Also check batteries in cable assembly.

•

Comm Port in Programmer Is Set Wrong—Verify proper comm port number has been selected in the setup routing of the programming software. If the wrong comm port is selected, communications will not occur.

•

Security Code in Meter—If security codes have been downloaded to the meter, the programming device must have the proper code to make connection to the meter. Verify security codes in the setup routing of the programming software.

•

Cable Not Connected Properly—Verify optical probe lines up properly over the optical connector. Reinstall cover for proper alignment. Verify PC (or handheld) and cable are securely connected and attached to the correct comm port.

•

Main Register Electronics Failure—Return meter for repair.

Reed Switch Does Not Activate the Alternate or Toolbox Mode •

Magnetic Field Is Too Weak—Place magnet closer to switch or use stronger magnet.

•

Magnet was not in place for four consecutive seconds.

•

Reed Switch Failure—Return meter for repair.

•

Alternate Mode Items Not Selected—Reprogram register with items to be displayed in Alternate Mode.

Test Mode Switch Does Not Place Meter in Test Mode •

Switch Not Securely Seated—Verify that the tab has been completely pushed into the Test Mode position and that the inner cover is fully engaged with the base assembly.

•

Switch or Electronic Failure—Return meter for repair.

•

Test Mode Items Not Selected—Reprogram meter with items to be displayed in Test Mode.

Diagnostic 1 Condition Incorrectly Active •

Verify that meter is programmed with the correct service type (does not apply for VECTRON SVX meters).

Diagnostic 2, 3, or 4 Condition Incorrectly Active •

Verify that thresholds are not set too tight.

Counters Are Too High •

5-16

Verify that thresholds are not set too tight.

VECTRON SVX Technical Reference Guide

7HVWLQJ7URXEOHVKRRWLQJ$QG0DLQWHQDQFH

VECTRON firmware versions 2.2 and 2.3 could provide “interesting” results when the meter is configured for lagging KVA and the meter is operated under leading power factor conditions. At the end of each 60 cycle sampling period, the VECTRON sets the KVA register integrator input to either the just measured RMS KVA value or zero depended upon the VAR value just measured. If the sum of the individual phase VAR values is zero or positive, the KVA integrator input value is equal to the just measured RMS KVA value. If the sum of the individual phase VAR values is negative, the KVA integrator input value is equal to zero. Under lagging or unity power factor conditions, KVA exceeds or equals KW, respectively. But under leading power factor conditions, KVA is less than KW which results in a power factor greater than unity! Thus the interesting results. In the SVX release, the leading condition causes the KVA register integrator input to be set equal to the just measured KW value. This prevents a power factor of greater than unity from occurring. The predominant load in the industry consists of a lagging power factor.

MAINTENANCE Preventive Maintenance No scheduled or preventive maintenance (other than battery replacement for TOU and Extended Function versions), is necessary for the VECTRON meter.

Calibration and Adjustments The VECTRON meter is calibrated at the factory, using polyphase ABC configuration. While we recommend this method of calibration as the most accurate, other factory calibration methods are available at the customer’s request.

Battery Precautions A lithium battery is used in the VECTRON TOU and extended function meters only.

Line potential may exist on the battery terminals. Follow these precautions: • • • • • •

Never short-circuit batteries (such as by measuring current capability with an ammeter). Do not recharge batteries. Do not store or transport batteries in metal or other electrically conductive containers. Keep batteries separated. If stored in a container where they can contact each other, face them in the same direction to prevent short circuits. Do not operate batteries at temperatures above 85°C (185°F). Dispose of batteries where they will not be punctured, crushed, or incinerated. Discard the battery using proper hazardous waste procedures.

VECTRON SVX Technical Reference Guide

5-17

Testing, Troubleshooting, And Maintenance

Corrective Maintenance Because of the high level of integrated packaging and surface-mount components, on-board component repairs are not recommended. The entire meter or appropriate subsection should be returned to Schlumberger Customer Service for repair.

5-18

VECTRON SVX Technical Reference Guide

CHAPTER 6

REPLACEMENT PARTS, ACCESSORIES, AND DRAWINGS

DIRECT REPLACEMENT CAUTION Correct wiring should always be verified when directly replacing an electromechanical meter with a new solid-state autoranging meter. Because all auto ranging meters without isolation transformers must have a common neutral point inside the meter in order to function properly, internal phase to neutral shorts could occur. The two diagrams that follow indicate the potential for a short when replacing a Sangamo 4L2, 21/2 element, Form 6A electromechanical meter (Figure 6.1) with a VECTRON and VECTRON SVX (Figure 6.2). With direct replacement, A Phase would be shortened to neutral.

Figure 6.1 Sangamo 4L2, 21/2 Element, Form 6A, Electromechanical Meter

VECTRON SVX Technical Reference Guide

6-1

Replacement Parts, Accessories, And Drawings

Figure 6.2 3∅, 4W Wye Form 46A Wiring Diagram, Type SV5AD

6-2

VECTRON SVX Technical Reference Guide

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REPLACEMENT PARTS Table 6.1 VECTRON Meter Replacement Parts Description

Part Number

Main Circuit Board (Demand/TOU)*

441490-xxx

Autoranging Power Supply Transformer (120–277V)

512462-001

Autoranging Power Supply Transformer (240–480V)

512462-002

Liquid Crystal Display

511993-002

Liquid Crystal Display Support

440661-001

Battery

512359-001

Meter Nameplate

441499-xxx

Mercury-Wetted Relay Board #1 (1 Hg Relay, 1 Solid-State Contact)

441481-001

Mercury-Wetted Relay Board #2 (2 Hg Relays, 1 Solid-State Contact)

441482-001

Polycarbonate Cover (S-Base with Demand Reset)

441472-001

Polycarbonate Cover (S-Base without Demand Reset)

441472-002

Polycarbonate Cover (A-Base with Demand Reset)

441641-002

Polycarbonate Cover (A-Base without Demand Reset)

441641-002

Main Circuit Board Cover

441334-001

Main Circuit Board Holder

441333-001

* Please note that the Main Circuit Board, in addition to other electrical/electronic circuit components that reside on the same board, cannot be replaced in a meter without affecting the accuracy of the device. The meter should be factory calibrated in order to compensate for the new electrical/electronic parts. This does not apply to I/O or Modem Boards.

VECTRON SVX Technical Reference Guide

6-3

Replacement Parts, Accessories, And Drawings

Table 6.2 VECTRON SVX Meter Replacement Parts Description

Part Number

Liquid Crystal Display

511993-002

Liquid Crystal Display Support

440661-001

TOU/Mass Memory Battery

512359-001

Modem Battery

512702-001

Meter Nameplate

441819-xxx

Polycarbonate Cover (Socket w/ demand reset)

441470-001

Polycarbonate Cover (Socket w/o demand reset)

441471-002

Polycarbonate Cover (A-base w/ demand reset)

441641-001

Polycarbonate Cover (A-base w/o demand reset)

441641-002

Main Circuit Board Cover

441334-001

Main Circuit Board Holder (Socket)*

441793-001

Main Circuit Board Holder (A-base)*

441793-002

Elastomer Switch

511508-001

* The socket uses 2 P/N 441793-001 holders. The A-base meter uses 1 P/N 441793-001 and 1 P/N 441793-002 holder. The Main Circuit Board, in addition to other electrical/electronic circuit components that reside on the same board, cannot be replaced in a meter without affecting the accuracy of the device. The meter should be factory calibrated in order to compensate for the new electrical/electronic parts. This does not apply to I/O or Modem Boards.

Table 6.3 VECTRON I/O Upgrade Kits Description

6-4

Part Number

1 Hg, 1LCSS Board with Viking Connectors

601758-001

1 Hg, 1 LCSS Board with Pigtail Cables

601758-002

2 Hg, 1 LCSS Board with Viking Connectors

601758-003

2 Hg, 1 LCSS Board with Pigtail Cables

601758-004

VECTRON SVX Technical Reference Guide

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Table 6.4 VECTRON SVX I/O Upgrade Kits Description

Part Number

1 Hg, 1 LCSS-Board w/ Viking Connectors

601758-001

1 Hg, 1 LCSS-Board w/ Pigtail Cable

601758-002

2 Hg, 1 LCSS-Board w/ Viking Connectors

601758-003

2 Hg, 1 LCSS-Board w/ Pigtail Cable

601758-004

1 Hg, 1 LCSS-Board wired to Terminals

601758-005

1 SS KYZ, 1 LCSS w/ Pigtail Cable

601758-006

2 SS KYZ, 1 LCSS w/ Pigtail Cable

601758-007

1 SS KYZ, 1 LCSS w/ Viking Connectors

601758-010

2 SS KYZ, 1 LCSS w/ Viking Connectors

601758-011

1 SS KYZ, 1 LCSS wired to Terminals

601758-014

1 SS KYZ, 1 LCSS, AMR Interface, w/ Pigtail Cable

601758-008

2 SS KYZ, 1 LCSS, AMR Interface, w/ Pigtail Cable

601758-009

1 SS KYZ, 1 LCSS, AMR Interface, w/ Viking Connectors

601758-012

2 SS KYZ, 1 LCSS, AMR Interface, w/ Viking Connectors

601758-013

Table 6.5 VECTRON SVX Modem Retrofit Kits Kit Part Number 6001761-001

Options PHDO

OHD

SSIO

S

X

BL

SSIO CONNECTION1

6001761-002

S

X

VC

6001761-003

S

X

BL

6001761-004

S

X

6001761-005

S

X

X

BL

6001761-006

S

X

X

VC

6001761-007

S

X

X

BL

6001761-008

S

X

X

VC

6001761-009

P

X

BL

VC

6001761-010

P

X

VC

6001761-011

P

X

BL

6001761-012

P

X

6001761-013

P

X

X

BL

6001761-014

P

X

X

VC

6001761-015

P

X

X

BL

6001761-016

P

X

X

VC

6001761-017

S

6001761-018

S

6001761-019

P

6001761-020

P 1

VECTRON SVX Technical Reference Guide

VC

X X

Where BL = Bare Leads and VC = Viking Connector

6-5

Replacement Parts, Accessories, And Drawings

PROGRAMMING CABLES Table 6.6 Reader Programmer to Meter Programming Cables Reader Programmer

Communication Type

Part Number

MicroPalm® PC/4000 & PC/5000

Optical Coupler

440799-001

Telxon® PTC-860

Optical Coupler

441244-001

DAP Microflex™ PC9000

Optical Coupler

512500-019

MicroPalm® PC/4000 & PC/5000

25-pin connector

512094-009

Telxon PTC-860

9-pin connector

512334-001

DAP Microflex™ PC9000

25-pin connector

512500-002

®

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7R0HWHU2SWLFDO3RUW

Figure 6.3 PC to Meter Programming Cable

6-6

VECTRON SVX Technical Reference Guide

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OUTPUT BOARD COLOR CODING Two output boards are available with the VECTRON meter: • •

Option One has one Form C mercury-wetted relay and a Form A lowcurrent solid-state contact. (See Figure 6.4 and Figure 6.5). Option Two has two form C mercury-wetted relay and a Form A lowcurrent solid-state contact. (See Figure 6.6 and Figure 6.7).

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Figure 6.4 Option One Output Board VECTRON and SVX

12

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Figure 6.5 Option One Output Board VECTRON SVX only

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VECTRON SVX Technical Reference Guide

6-7

Replacement Parts, Accessories, And Drawings

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12

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5HOD\

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Figure 6.6 Option Two Output Board VECTRON and VECTRON SVX

1&

12

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5HG

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Figure 6.7 Option Two Output Board VECTRON SVX only

6-8

VECTRON SVX Technical Reference Guide

5HSODFHPHQW3DUWV$FFHVVRULHV$QG'UDZLQJV

Table 6.7 VECTRON Forms and Services Traditional Form

Autorange Form

Class

Elements

2S

2S

200

2

5S

45S

20

2

Existing/New Service

Service Notes

(2S) Singlephase

A, B

(1S) Singlephase

A, B

(45S) 3-Wire Delta

A

(45S) 4-Wire Delta

A

(45S) 4-Wire Delta

A

(45S) Network

26S

6S 9S

5A

66S

46S 9S

45A

20

20 20

20

2

2.5 3

2

A

(45S) Singlephase

A, B

(66S) 3-Wire Delta

A

(66S) 4-Wire Delta

F

(66S) 4-Wire Wye

A

(66S) Network

A

(66S) Singlephase

A, B

(6S) 4-Wire Wye

A

(10S) 4-Wire Wye

A, C, D

(9S) 4-Wire Wye

A

(48S) 4-Wire Delta

A, C

(45A) 3-WireDelta

A

(45A) 4-Wire Delta

A

(45A) 4-Wire Wye

A

(45A) Network (45A) Singlephase

A A, B

6A

46A

20

2.5

(46A) 4-Wire Wye

A

8A

48A

20

3

(48A) 4-Wire Delta

A, C

(48A) 4-Wire Delta

C, E

10A

10A

20

3

12S

16S

12S

16S

200

200

2

3

(9A) 4-Wire Wye

A

(10A) 4-Wire Wye

A

(12S) 3-Wire Delta

A

(12S) Network

A

(16S) 4-Wire Wye

A

(14S) 4-Wire Wye

A

(15S) 4-Wire Delta

A

(17S) 4-Wire Delta

A

Service Notes: A

Suitable for direct replacement (substitution) of existing form watthour meter. Not intended for use with phase shifting transformers.

B

Not supported in SiteScan Diagnostics

C

Not suitable for direct meter replacement if potential transformers are used.

D

2 1/2 Element, B-phase service potential is derived and not measured.

E

Can be used in a rewired 48A installation. Not intended for use with phase shifting transformers.

F

Suitable for direct replacement (substitution) of existing form watthour meter. Not intended for use with phase shifting transformers. If PTs are used, grounded secondaries are also required.

VECTRON SVX Technical Reference Guide

6-9

Replacement Parts, Accessories, And Drawings

WIRING DIAGRAMS Table 6.7 lists the standard VECTRON and SVX meter forms and the services used for each form. Wiring diagrams are given on the pages that follow.

Figure 6.8 3Ø, 3W Form 45S Wiring Diagram, Type SV3SD Meter

Figure 6.9 3Ø, 3W Form 45A Wiring Diagram, Type SV3AD Meter

6-10

VECTRON SVX Technical Reference Guide

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1RWH

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WUDQVIRUPHUPXVWEHWKH UDWLRRIWKHSKDVHDQG FXUUHQWWUDQVIRUPHUV

Figure 6.10 3Ø, 4W

∆ , Form 45S Wiring Diagram, Type SV3AD Meter

1RWH

7KHSKDVHFXUUHQW

WUDQVIRUPHUPXVWEHWKH UDWLRRIWKHSKDVHDQGFXU UHQWWUDQVIRUPHUV

Figure 6.11 3Ø, 4W

VECTRON SVX Technical Reference Guide

∆ , Form 45A Wiring Diagram, Type SV3AD Meter

6-11

Replacement Parts, Accessories, And Drawings

Figure 6.12 3Ø, 4W Wye Form 45S Wiring Diagram, Type SV3SD Meter

Figure 6.13 3Ø, 4W Wye Form 45A Wiring Diagram, Type SV3AD Meter

6-12

VECTRON SVX Technical Reference Guide

5HSODFHPHQW3DUWV$FFHVVRULHV$QG'UDZLQJV

Figure 6.14 3Ø, 4W Wye Form 46S Wiring Diagram, Type SV5SD Meter

Figure 6.15 3Ø, 4W Wye Form 46A Wiring Diagram, Type SV5AD Meter

VECTRON SVX Technical Reference Guide

6-13

Replacement Parts, Accessories, And Drawings

Figure 6.16 3 Stator, 3Ø, 4W ∆ , Form 48A Wiring Diagram, Type SV6AD Meter

1RWH

7KHSRZHUSKDVHRIWKHZLUHGHOWD PXVWEHZLUHGWRWKHULJKWKDQG

HOHPHQWLI6LWH6FDQŒGLDJQRVWLFVDUHXVHG3RWHQWLDOWUDQVIRUPHUVPD\QRWEH XVHGLQWKHZLUHGHOWDVHUYLFH

Figure 6.17 3Ø, 4W Wye or 3Ø, 4W ∆ , Form 9S Wiring Diagram, Type SV4SD Meter

6-14

VECTRON SVX Technical Reference Guide

5HSODFHPHQW3DUWV$FFHVVRULHV$QG'UDZLQJV

Figure 6.18 3Ø, 4W Wye or 3Ø, 4W ∆ , Form 10A (9A) Wiring Diagram, Type SV4AD Meter







/,1( 





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Figure 6.19 1Ø, 3W Form 2S Wiring Diagram, Type SV1SR Meter, Self-Contained

VECTRON SVX Technical Reference Guide

6-15

Replacement Parts, Accessories, And Drawings

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Figure 6.20 3Ø, 3W Network, Form 12S Wiring Diagram, Type SV2SD Meter, Self-Contained



















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Figure 6.21 3Ø, 3W Delta, Form 25S Wiring Diagram, Type SV2SD Meter, Self-Contained

6-16

VECTRON SVX Technical Reference Guide

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1RWH

7KHSRZHUSKDVHRIWKHZLUHGHOWD PXVWEHZLUHGWRWKHULJKWKDQG

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Figure 6.22 3Ø, 4W Wye or 3Ø, 4W ∆ , Form 16S Wiring Diagram, Type SV4SD Meter, Self-Contained





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Figure 6.23 3Ø, 4W Wye, 3Ø, 4W Delta Form 16A Wiring Diagram, Type SV4SD Meter

VECTRON SVX Technical Reference Guide

6-17

Replacement Parts, Accessories, And Drawings

Figure 6.24 3Ø, 3W Form 66S Wiring Diagram, Type SV3SD Meter

DRAWINGS This section contains three drawings: • • •

6-18

VECTRON Block Diagram VECTRON SVX Block Diagram VECTRON and VECTRON SVX Option Board Schematic

VECTRON SVX Technical Reference Guide

5HSODFHPHQW3DUWV$FFHVVRULHV$QG'UDZLQJV

Figure 6.25 VECTRON Block Diagram

VECTRON SVX Technical Reference Guide

6-19

Replacement Parts, Accessories, And Drawings

Figure 6.26 VECTRON SVX Block Diagram

6-20

VECTRON SVX Technical Reference Guide

5HSODFHPHQW3DUWV$FFHVVRULHV$QG'UDZLQJV

Figure 6.27 VECTRON Option Board Schematic

VECTRON SVX Technical Reference Guide

6-21

Replacement Parts, Accessories, And Drawings

Notes:

6-22

VECTRON SVX Technical Reference Guide

GLOSSARY

alternate mode

One of the four modes of register operation used to display quantities that are not needed on a regular basis, for example Kh .

annunciator

A label on the LCD that identifies particular quantities displayed by a register.

autobaud rate sensing

The capability of determining the modem band rate for incoming calls ( i.e., 300, 1200, or 2400).

auto-serivce sensing

The capability of determining the service type that is installed.

battery carryover

The amount of time that the register is energized by the battery to maintain the accuracy of the clock within the microprocessor. All program and billing data are transferred to nonvolatile memory when battery carryover operation is activated.

block interval deamnd

Demand based on intervals from 1 to 60 minutes in length. All calculations of demand are based on rolling demand. To calculate block interval demand, program the register to have one subinterval of the same length as the demand interval.

calendar schedule

Schedule that determines seasonal changes, Daylight Savings Time changes, holidays, daily switch points, etc.

call on schedule

Enables the meter to phone the master station on a schedule.

call windows

Time ranges that determine when a meter will answer the phone or place calls to the master station.

cold load pickup

See Demand Delay.

cumulative TOU kW

The sum of the maximum demand values at each demand reset since the cumulative kW register was cleared. It is updated at each demand reset by adding the maximum demand register to the cumulative register.

continuous cumulative TOU kW

The sum of the maximum and cumulative demand at any time.

current season

The season that defines the present rate schedule.

customer alerts

Outputs that can be used, for example, to control external lights indicating the time of use rate in effect.

VECTRON SVX Technical Reference Guide

G-23

Glossary

G-24

demand

The average vaulue of power over a specified interval of time.

demand delay

Cold Load Pickup (CLPU). The programmable amount of time required before demand calculations are restarted after a power outage.

demand interval

The specified time over which demand is calculated.

demand reset

When the current Maximum Demand is set to zero.

demand subinterval

The smaller blocks of time that are used in rolling demand calculations.

demand threshold

A programmed value that, when exceeded by calculated demand, initiates a contact closure.

display

Provides a visual indication of the data accumulated by the register.

display duration

A programmed number of seconds during which a quantity displays on the LCD before scrolling to the next quantity.

download

Transfer of data (down) from the master station to a register or to a Retriever Programmer, or from a Retriever Programmer to a register.

EEPROM

Nonvolatile memory. Electrically Erasable Programmable Read Only Memory that retains its data during a power outage without the need for a battery.

electronic detent

An algorithm in VECTRON firmware which restricts the VECTRON to metering energy flow only to the customer.

end-of-interval annunciator (EOI)

An annunciator that can be displayed at the end of every subinterval.

end-of-interval output

A contact closure output that can be initiated at the end of each subinterval.

error codes

Monitor operation of the meter. Nine error codes are available for display in Normal, Alternate, and Test display modes.

fixed decimal

A programmable format that always displays the same number of digits to the right of the decimal.

floating decimal

A programmable format that allows a maximum number of digits to the right of the decimal, but can display any number of digits to the right of the decimal equal to or less than that number specified, if required to display significant digits to the left of the decimal.

full scale value

The demand value that, when exceeded, causes error code Er100000 to display. This value can be any quantity less than or equal to the largest allowable Maximum Demand Value that can be displayed.

VECTRON SVX Technical Reference Guide

*ORVVDU\

independent outputs/load control outputs

Outputs that can be used to close a contact to control, for example, a water heater load by following switchpoints independent of the time-of-use registers.

Kh

Determines the rate at which the watt disk emulator scrolls and the infrared LEDs pulse. Does not affect displayed values.

KYZ output

Pulse initiator outputs. A Form C contact closure output that generates pulses per the programmed Ke value.

last season

The season immediately preceding the current season.

LCD

Liquid Crystal Display.

LED

Light Emitting Diode.

magnetic reed switch

A mechanical switch consisting of a thin metal contact which is closed by an external magnetic field.

mass memory

The functionality of a meter to accumulate pulses in proportion to accumulated energy in programmed intervals.

maximum demand

The largest demand calculated during any interval over a billing period. The Maximum Demand quantity displayed in Test Mode is that value calculated over the test interval only (this can differ from the Normal Mode demand interval).

modem

Connects communication systems and devices from a remote outlet to a near device or system.

nonvolatile memory

See EEPROM.

normal mode

One of the four operating modes of the meter. It includes all routine meter operations.

off-hook detect

Programmable feature that allows the meter to use the phone line without interferring with other phone usage.

optical tower

Tower located on the face of the meter. The meter can be programmed and communicated with through the optical tower.

phone home during outage

Enables the meter to call the master station during a power outage. This is an optional feature.

phone home on event

A feature that allows the meter to call the master station when an event occurs.

phone line sharing

Can connect up to five auto-answer meters to a single voice grade telephone line for remote interrogation.

power down

To de-energize.

power up

To energize.

primary/direct reading register

A register in which the readings take into account the register multiplier.

VECTRON SVX Technical Reference Guide

G-25

Glossary

G-26

pulse initiator outputs

See KYZ output.

register multiplier

A programmable value which is used in calculations of displayed energy and demand readings. This can be used by setting the register multiplier equal to the CT ratio times the PT ratio of the installation.

retriever programmer

A handheld field device used to read and program Schlumberger Industries products. The Retriever Programmers referred to throughout this manual are the Telxon and MicroPalm units.

rolling interval demand

A calculation of maximum demand derived from the moving average of the smaller consecutive subintervals.

season

A programmable amount of time that a rate schedule is in effect. Season start dates are programmed in the format MM/DD (Month/Day).

self-reading register

Captures all register data in the meter.

solid-state outputs

Outputs consisting of solid materials as opposed to vacuum and gas tubes.

switchpoint

A programmable time within the rate schedule that deactivates the current register of one rate and activates a second register of a second rate.

test mode

One of the four modes of register operation. It allows testing of the register without altering billing data.

VECTRON SVX Technical Reference Guide

INDEX $

A-base configurations  accessories  active rate indicators  alternate display mode  annunciator  items  switch  AMR interface  annunciators  testing  apparent energy  register selection  autoranging power supply  %

base assembly  battery  installation  precautions  testing  TOU battery carryover  voltage  blind dialing  block diagrams ± block interval demand  bottom-connected meters installation  burden data  &

cable lead connection  cables output  part numbers  calculating actual kVA  calendar schedule  calibration and adjustments  call on schedule  calling windows  change dates  channel configuration  clock/mass memory error  troubleshooting  code numbers  coil factors  cold load pickup time  communication baud rate  communication boards 

VECTRON SVX Technical Reference Guide

controls  corrective maintenance  cover  installation  removal  cross-phase check  cumulative demand  annunciator  continuous  current diversion  measurement  season registers  transformer circuit  waveform distortion check  customer alerts  output  '

daily schedules  for season  damage  data storage  Daylight Savings Time recognition  demand  block interval  calculation  continuous cumulative  cumulative  interval length  present interval  previous  reset  rolling interval  subinterval length  testing  thermal  threshold output  demands calculation  Diagnostic #1  error diagram  error display  error example  Diagnostic #2  error example  Diagnostic #3  error example 

I-1

INDEX

Diagnostic #4  error example  phasor diagram  Diagnostic #5  diagnostic check counters  diagnostic checks ± display  display options  dimensions  display alternate mode  normal mode  scroll time  test mode  toolbox mode  troubleshooting  (

EEPROM error  troubleshooting  End of Interval Output  energy calculation  flow check  testing  envelope example  environment  EOI annunciator  error display  extended function meters general  VAh measurement  varh measurement  )

fatal error  troubleshooting  faulty site wiring  features ± field testing  required hardware  firmware revision  flexible connector option board  form consolidation  Forms 12S 3-wire delta phasor diagram  3-wire network phasor diagram  wiring diagram  16S 4-wire delta phasor diagram  4-wire wye phasor diagram  wiring diagram  45A wiring diagram  45S

I-2

3-wire delta phasor diagram  3-wire network phasor diagram  4-wire delta phasor diagram  4-wire wye phasor diagram  wiring diagram  46A wiring diagram  46S 4-wire wye phasor diagram  48A wiring diagram  66S form consolidation  wiring diagram  9A wiring diagram  9S 4-wire delta phasor diagram  4-wire Wye phasor diagram  wiring diagram  frequency  front-end processor error  troubleshooting  full scale overflow error troubleshooting  *

general information ±"" gereral information ""± +

handling  Hg-wetted option board  holiday schedules  ,

ID code numbers  inactive phase current check  incorrect phase voltage  incorrect voltage transformer ratio  independent outputs dialy schedules, current season  indicators  infrared test LED  inspection meters with batteries  meters without batteries  installation battery  battery modem  board Hg-wetted retrofit  boards output retrofit  cover 

INDEX

meter  installation diagnostics  instantaneous current  voltage  interval lengths  IR LED  .

Kh (watthour meter constant)  knockout  option board  kVA demand calculation  kVA hours calculation  kWh or kW accumulation troubleshooting  KYZ outputs  /

last season registers  LCD  illustrated  operation  line-level voltages  liquid crystal display. See LCD load control output  loss of phase voltage  low battery error  troublehooting  0

magnetic reed switch  main assembly  maintenance corrective  preventive  malfunctioning system equipment  mass memory option bit resolution  capacity  interval lengths  power outage  maximum demand annunciator  measurement malfunction  techniques  sampling  VAh  varh  watthours  mercury-wetted relay  meter forms ± meter ID  modem  1

non-fatal errors  troubleshooting 

VECTRON SVX Technical Reference Guide

normal display mode  items  number of days since reset  demand resets  power outages  times programmed  2

off-hook detect  open current transformer circuit  operating procedures  operating environment  operation active rate indicators  battery carryover  rate annunciators  TOU  operations season change  optical communications port  option board flexible connector  knockout  schematic  optiona output contact closures troubleshooting  optional modem  answer delays  autobaud rate sensing  call on schedule  call windows  dialing features  off-hook detect  phone home during outage  phone home on event  phone line sharing  outputs  AMR interface  mercury-wetted relays  solid-state contact closure  optional modem medem outputs  output board bolor coding  cables  3

parallel off-hook detect  part numbers  PC-PRO+  phase

I-3

INDEX

angle displacement check  notation in display  voltage deviation check  phone home during outage  phone home on event  phone line sharing  plot of toolbox display mode  polarity check  poor load power factor conditions  poor system conditions  potential indicators  power down  error troubleshooting  power down error  power outage  power supply transformer  power-up  present interval demand  preventive maintenance  previous interval demand  previous interval input pulse count  problems troubleshooting  program ID  Programmable functions  programmable outputs  parameters  programmer cannot communicate troubleshooting  programming  cables partnumbers  PRO-READ  pulse weight calculation  pulse initiator output (KYZ)  push-type demand reset  5

rate annunciators  schedules  rated accuracy  recording duration  reed switch troubleshooting  register display formats  full scale  overflow  multiplier  programss  readings  selection extended function meters

I-4

register selection  self-read  registers current season  last season  replacement parts  reset mechanism troubleshooting  reverse direction error troubleshooting  reverse energy flow  reverse power flow error  rolling interval demand  6

sample migration  sampling  schematics block diagram ""± option board  seal  season change  seasonal schedules  segment test  self-diagnostic check  self-read registers  serial off-hook detect  service types  shipping weights  shorte current transformer circuit  shorted voltage transformer windings  site selection  SiteScan  diagnostics  toolbox display mode  socket-base meters installing  software revision  solid-state contact closure  outputs  specifications burden data  electrical  mass memory  modem  operating environment  programmable outputs  rated accuracy  starting load  time  starting load, creep  storage  subinterval lengths  surge suppression  system conditions 

INDEX 7

test connections  displa mode items  display mode  annunciator  button  switch  Kh  method infrared pulse adapter  snap switch assembly  testing annunciators  disk emulation  battery  demand  energy  disk emulation annunciator  energy/time method  infrared test LED  pulse initiator outputs  field  infrared test LED  TOU schedule  thermal demand  time and data troubleshooting  time remaining in interval  in the subinterval  till test mode time-out  time-of-use. See TOU time-out length  toolbox display mode  phase notation  plot  switch  toolbox display list  TOU  battery carryover  calendar schedule testing  rate annunciators  rate indicators  registers  schedules  season change  troubleshooting fatal errors  non-fatal errors  other problems 

user fields  9

VAh measurement  varh measurement  VECTRON display modes  meter  voltage indicator annunciators  voltage measurement  voltage ranges  :

warning label  watt disk emulator  watthour measurement  waveform sampling  weights  wiring diagrams ±

8

unpacking 

VECTRON SVX Technical Reference Guide

I-5

INDEX

Notes:

I-6

VECTRON SVX Technical Reference Guide