Mjt314 Relay
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Genesis Range Numerical Overcurrent & Earthfault Protection
Cutout Details
SIZE 6 CASE
Ordering Information
ISO 9001-2000 The policy of Easun Reyrolle is one of continuous improvement and development. The company therefore reserves the right to supply equipment, which may differ slightly from that described and illustrated in this publication.
IDMTL / DTL phase fault overcurrent stage ( 50 / 51 ) IDMTL / DTL earth fault overcurrent stage ( 50N /51N) Dual DC transient free highsets for phase fault & earth fault Numerical, true RMS measurement Six characteristics
Control The relay has the following output contacts • Common Trip and Alarm 2 N/O • Protection Healthy 1 N/C • Starter operated 1 C/O • Phase fault operated 1 N/O • Earth fault operated 1 N/O • P/F highset1 operated 1 N/O • E/F highset1 operated 1 N/O • P/F highset2 operated 1 N/O • E/F highset2 operated 1 N/O
The draw-out case is provided with the required CT shorting contacts.
BANGALORE WORKS
AUTOMATION DIVISION
EXPORTS DIVISION
Mumbai
Delhi
Kolkata
Bangalore
Chennai
Secunderabad
FACT/MJT 314/07-06/Rev 0
#17/3 Arakere, Bannerghatta Road, Bangalore-560 076, India. Tel: +91 80 26581023 / 3268 Fax: +91 80 26580642 Email: [email protected] “Ashirwad”, #25, 29th Main, 4th B Cross, BTM Layout 2nd Stage, Bangalore-560 076, India. Tel: +91 80 26685496/51311405 Fax: +91 80 26685446 Email: [email protected]
• • • • •
The four modules viz. Input, Power supply Measuring and group change modules are plugged into the Front fascia which houses switches, LEDs and LCD display for the human machine interface. All PCB s are well protected from one another and from external environment with best shielding for better electromagnetic compatibility and housed in the enclosed chassis, which is withdrawable from the outer case.
Qualification
Ernavur, Chennai-600 057, India. Tel: +91 44 25733715/358 Fax: +91 44 25733468 Email: [email protected]
Protection
The current inputs can be configured for operation with either 1A or 5A ratings. Appropriate connections are required on the relay terminal blocks.
• Auxiliary Supply range • Communication protocol – IEC 60870 – 5 – 103 (or) MODBUS RTU
SWITCHGEAR WORKS
The MJT 314 over current relay combines the power and flexibility of microprocessor technology with decades of experience in the field of protection. A wide range of protection elements and characteristics are supplemented by advance features such as metering, fault recorder and communication.
The MJT Protection unit consists of the following modules within its dimensions. • Input Module • Power Supply and Output Relay module • Measuring Module & communication interface • Front Fascia • Group Change module
Note: 1. All dimensions are in mm 2. All dimensions are measured equidistant from centre line 3. Maximum depth of equipment inside panel : 200mm
#98, Sipcot Industrial Complex, Hosur 635 126, India. Tel: +91 4344 401600/01/02 Fax: +91 4344 276397
Features
Design
A B C 155 151 130.5
HOSUR WORKS
Description
MJT 314 offers inverse time and definite time over current protection for phase fault and earth fault with communication.
MODULAR CASES: SIZES 6
MJT 314
#17/3 Arakere, Bannerghatta Road, Bangalore-560 076, India. Tel: +91 80 26581023 / 3268 Fax: +91 80 26580642 Email: [email protected]
Applications • • • • •
Distribution feeders Transmission lines AC machines Capacitor banks Transformers
Sales Offices Tel: +91 22 22022270/22855415 Fax: +91 22 22825703 Email: [email protected] Tel: +91 80 26685496/51311405 Fax: +91 22 26685446 Email: [email protected] Bhopal
Telefax: +91 755 2684221 Email: [email protected]
Tel: +91 11 25747321/25747322 Fax: +91 11 25747320 Email: [email protected] Tel: +91 44 24346425/24347608 Fax: +91 44 24346435 Email: [email protected]
Numerical Overcurrent & Earthfault Protection - MJT314
Tel: +91 33 22848320 Fax: +91 33 22848326 Email: [email protected] Telefax: +91 40 27817847 Email: [email protected]
Corporate Office Easun Reyrolle Limited. 98 Sipcot Industrial Complex Hosur 635 126 India. Tel: +91 4344 401600/01/02 Fax: +91 4344 276397 www.easunreyrolle.com
Metering • True RMS measurements • Currents-Ir,Iy,Ib,Ie
Wiring Diagram
CT Input Rating Frequency
User Interface
• Push buttons for viewing/editing the settings and resetting
Communication • Data communication using IEC 60870-5-103 or MODBUS RTU Protocol
Operating Range VAUX 24V to 135V DC 43V to 280V DC
Digital (status) input Nominal Operating Range 30 V DC 18-36 V DC For higher input voltage up to 250 V DC, external dropping resistors will be supplied.
• RS485 communication electrical terminals at rear
Other Features Digital input for group changeover application Two group settings Storage of two fault records Internal real time clock Suitable for flashing faults Both 1A & 5A ratings in same relay Wide range of current settings Suitable for wide range of auxiliary Supply Non volatile memory for trip indication Low AC and DC burden Self-monitoring facility
1A/5A 50Hz
Auxiliary supply Nominal VAUX 30, 48, 110 V DC 110, 220 V DC 110 V AC
• Readable human machine interface with Backlit LCD display • LED indications
• • • • • • • • • • •
Technical Information
Protection Settings
Typical Wiring Diagram for MJT314
0.05xIn to 2.5xIn ∆ 0.01 In 0.05xIn to 2.5xIn ∆ 0.01 In 0.5xIn to 30xIn ∆ 0.5 In, off 0.5xIn to 30xIn ∆ 0.5 In, off 0.5xIn to 30xIn ∆ 0.5 In, off 0.5xIn to 30xIn ∆ 0.5 In, off 0.025 to 1.6 ∆ 0.001 0.025 to 1.6 ∆ 0.001 0 Secs to 20 Secs ∆ 0.01 Secs 0 Secs to 20 Secs ∆ 0.01 Secs 0 Secs to 20 Secs ∆ 0.01 Secs 0 Secs to 20 Secs ∆ 0.01 Secs Shaped Instantaneous 0 to 60 Secs ∆ 1 sec
Phase Fault Earth Fault Highset1 Phase Fault Highset1 Earth Fault Highset2 Phase Fault Highset2 Earth Fault P/F Time Multiplier E/F Time Multiplier P/F DTL E/F DTL P/F Highset1 DTL E/F Highset1 DTL Highset2 Reset Time
Inverse Characteristics Operating time can be calculated as follows: k t = ————— x Tm I α
[ I [-1 S
where I=fault current Is=current setting Tm=time multiplier SI3 - k = 0.14, α= SI1 - k = 0.0613, α = VI - k = 13.5, α= EI - k = 80.0, α= LTI - k = 120.0, α =
0.02 0.02 1.0 2.0 1.0
Output contacts The relay has the following output contacts • Common Trip and Alarm 2 N/O • Protection Healthy 1 N/C • Starter operated 1 C/O • Phase fault operated 1 N/O • Earth fault operated 1 N/O
• • • •
P/F highset1 operated E/F highset1 operated P/F highset2 operated E/F highset2 operated
Contact Rating Carry continuously Make & Carry Break
1 1 1 1
N/O N/O N/O N/O
5A AC rms or DC 20A for 0.2sec Resistive 75W DC Inductive 50W DC @L/R≤40msec with a maximum of 300V DC
Indication Green LED Protection healthy Orange LED Starter Red LED Trip Red LED (3mm) Submenu 16x2 Alphanumeric LCD display for settings, readings and fault data Burden AC Current Input 5 A Rating 1 A Rating Auxiliary input Quiescent (typical)
≤0.4 VA ≤0.05 VA 5 W (DC) 12VA (AC)
Environmental Temperature IEC 60068-2-1/2 Operating range -10° C to +55°C Storage range -25° C to +70°C Humidity IEC 60068-2-3 56 days at 40°C and 93%RH Transient Overvoltage IEC 60255-5 5KV, 1.2/50µs, 0.5J between all terminals and earth or between any two terminals without damage or flashover Insulation IEC 60255-5 2.0 KVrms for 1 min between all terminals and earth 2.0 KVrms for 1 min between independent circuits 1.0 KVrms for 1 min across normally open contacts High frequency Disturbance IEC 60255-22-1 Class III 2.5 KV Common (Longitudinal) mode 1.0 KV Series (Transverse) mode Electrostatic Discharge IEC 60255-22 -2 Class III 6 KV Contact Discharge 8 KV Air Discharge Radio Frequency Interference IEC 60255-22-3 Class III 20 MHz to 1000 MHz, 10V/m Fast Transient 2 KV, 5/50 ns, 2.5 kHz repetitive IEC 60255-22-4 Class III Vibration (Sinusoidal) IEC 60255-21-1 Class I Shock and Bump IEC 60255-21-2 Class I Mechanical Classification Durability
106 operations
Metering • True RMS measurements • Currents-Ir,Iy,Ib,Ie
Wiring Diagram
CT Input Rating Frequency
User Interface
• Push buttons for viewing/editing the settings and resetting
Communication • Data communication using IEC 60870-5-103 or MODBUS RTU Protocol
Operating Range VAUX 24V to 135V DC 43V to 280V DC
Digital (status) input Nominal Operating Range 30 V DC 18-36 V DC For higher input voltage up to 250 V DC, external dropping resistors will be supplied.
• RS485 communication electrical terminals at rear
Other Features Digital input for group changeover application Two group settings Storage of two fault records Internal real time clock Suitable for flashing faults Both 1A & 5A ratings in same relay Wide range of current settings Suitable for wide range of auxiliary Supply Non volatile memory for trip indication Low AC and DC burden Self-monitoring facility
1A/5A 50Hz
Auxiliary supply Nominal VAUX 30, 48, 110 V DC 110, 220 V DC 110 V AC
• Readable human machine interface with Backlit LCD display • LED indications
• • • • • • • • • • •
Technical Information
Protection Settings
Typical Wiring Diagram for MJT314
0.05xIn to 2.5xIn ∆ 0.01 In 0.05xIn to 2.5xIn ∆ 0.01 In 0.5xIn to 30xIn ∆ 0.5 In, off 0.5xIn to 30xIn ∆ 0.5 In, off 0.5xIn to 30xIn ∆ 0.5 In, off 0.5xIn to 30xIn ∆ 0.5 In, off 0.025 to 1.6 ∆ 0.001 0.025 to 1.6 ∆ 0.001 0 Secs to 20 Secs ∆ 0.01 Secs 0 Secs to 20 Secs ∆ 0.01 Secs 0 Secs to 20 Secs ∆ 0.01 Secs 0 Secs to 20 Secs ∆ 0.01 Secs Shaped Instantaneous 0 to 60 Secs ∆ 1 sec
Phase Fault Earth Fault Highset1 Phase Fault Highset1 Earth Fault Highset2 Phase Fault Highset2 Earth Fault P/F Time Multiplier E/F Time Multiplier P/F DTL E/F DTL P/F Highset1 DTL E/F Highset1 DTL Highset2 Reset Time
Inverse Characteristics Operating time can be calculated as follows: k t = ————— x Tm I α
[ I [-1 S
where I=fault current Is=current setting Tm=time multiplier SI3 - k = 0.14, α= SI1 - k = 0.0613, α = VI - k = 13.5, α= EI - k = 80.0, α= LTI - k = 120.0, α =
0.02 0.02 1.0 2.0 1.0
Output contacts The relay has the following output contacts • Common Trip and Alarm 2 N/O • Protection Healthy 1 N/C • Starter operated 1 C/O • Phase fault operated 1 N/O • Earth fault operated 1 N/O
• • • •
P/F highset1 operated E/F highset1 operated P/F highset2 operated E/F highset2 operated
Contact Rating Carry continuously Make & Carry Break
1 1 1 1
N/O N/O N/O N/O
5A AC rms or DC 20A for 0.2sec Resistive 75W DC Inductive 50W DC @L/R≤40msec with a maximum of 300V DC
Indication Green LED Protection healthy Orange LED Starter Red LED Trip Red LED (3mm) Submenu 16x2 Alphanumeric LCD display for settings, readings and fault data Burden AC Current Input 5 A Rating 1 A Rating Auxiliary input Quiescent (typical)
≤0.4 VA ≤0.05 VA 5 W (DC) 12VA (AC)
Environmental Temperature IEC 60068-2-1/2 Operating range -10° C to +55°C Storage range -25° C to +70°C Humidity IEC 60068-2-3 56 days at 40°C and 93%RH Transient Overvoltage IEC 60255-5 5KV, 1.2/50µs, 0.5J between all terminals and earth or between any two terminals without damage or flashover Insulation IEC 60255-5 2.0 KVrms for 1 min between all terminals and earth 2.0 KVrms for 1 min between independent circuits 1.0 KVrms for 1 min across normally open contacts High frequency Disturbance IEC 60255-22-1 Class III 2.5 KV Common (Longitudinal) mode 1.0 KV Series (Transverse) mode Electrostatic Discharge IEC 60255-22 -2 Class III 6 KV Contact Discharge 8 KV Air Discharge Radio Frequency Interference IEC 60255-22-3 Class III 20 MHz to 1000 MHz, 10V/m Fast Transient 2 KV, 5/50 ns, 2.5 kHz repetitive IEC 60255-22-4 Class III Vibration (Sinusoidal) IEC 60255-21-1 Class I Shock and Bump IEC 60255-21-2 Class I Mechanical Classification Durability
106 operations
Genesis Range Numerical Overcurrent & Earthfault Protection
Cutout Details
SIZE 6 CASE
Ordering Information
ISO 9001-2000 The policy of Easun Reyrolle is one of continuous improvement and development. The company therefore reserves the right to supply equipment, which may differ slightly from that described and illustrated in this publication.
IDMTL / DTL phase fault overcurrent stage ( 50 / 51 ) IDMTL / DTL earth fault overcurrent stage ( 50N /51N) Dual DC transient free highsets for phase fault & earth fault Numerical, true RMS measurement Six characteristics
Control The relay has the following output contacts • Common Trip and Alarm 2 N/O • Protection Healthy 1 N/C • Starter operated 1 C/O • Phase fault operated 1 N/O • Earth fault operated 1 N/O • P/F highset1 operated 1 N/O • E/F highset1 operated 1 N/O • P/F highset2 operated 1 N/O • E/F highset2 operated 1 N/O
The draw-out case is provided with the required CT shorting contacts.
BANGALORE WORKS
AUTOMATION DIVISION
EXPORTS DIVISION
Mumbai
Delhi
Kolkata
Bangalore
Chennai
Secunderabad
FACT/MJT 314/07-06/Rev 0
#17/3 Arakere, Bannerghatta Road, Bangalore-560 076, India. Tel: +91 80 26581023 / 3268 Fax: +91 80 26580642 Email: [email protected] “Ashirwad”, #25, 29th Main, 4th B Cross, BTM Layout 2nd Stage, Bangalore-560 076, India. Tel: +91 80 26685496/51311405 Fax: +91 80 26685446 Email: [email protected]
• • • • •
The four modules viz. Input, Power supply Measuring and group change modules are plugged into the Front fascia which houses switches, LEDs and LCD display for the human machine interface. All PCB s are well protected from one another and from external environment with best shielding for better electromagnetic compatibility and housed in the enclosed chassis, which is withdrawable from the outer case.
Qualification
Ernavur, Chennai-600 057, India. Tel: +91 44 25733715/358 Fax: +91 44 25733468 Email: [email protected]
Protection
The current inputs can be configured for operation with either 1A or 5A ratings. Appropriate connections are required on the relay terminal blocks.
• Auxiliary Supply range • Communication protocol – IEC 60870 – 5 – 103 (or) MODBUS RTU
SWITCHGEAR WORKS
The MJT 314 over current relay combines the power and flexibility of microprocessor technology with decades of experience in the field of protection. A wide range of protection elements and characteristics are supplemented by advance features such as metering, fault recorder and communication.
The MJT Protection unit consists of the following modules within its dimensions. • Input Module • Power Supply and Output Relay module • Measuring Module & communication interface • Front Fascia • Group Change module
Note: 1. All dimensions are in mm 2. All dimensions are measured equidistant from centre line 3. Maximum depth of equipment inside panel : 200mm
#98, Sipcot Industrial Complex, Hosur 635 126, India. Tel: +91 4344 401600/01/02 Fax: +91 4344 276397
Features
Design
A B C 155 151 130.5
HOSUR WORKS
Description
MJT 314 offers inverse time and definite time over current protection for phase fault and earth fault with communication.
MODULAR CASES: SIZES 6
MJT 314
#17/3 Arakere, Bannerghatta Road, Bangalore-560 076, India. Tel: +91 80 26581023 / 3268 Fax: +91 80 26580642 Email: [email protected]
Applications • • • • •
Distribution feeders Transmission lines AC machines Capacitor banks Transformers
Sales Offices Tel: +91 22 22022270/22855415 Fax: +91 22 22825703 Email: [email protected] Tel: +91 80 26685496/51311405 Fax: +91 22 26685446 Email: [email protected] Bhopal
Telefax: +91 755 2684221 Email: [email protected]
Tel: +91 11 25747321/25747322 Fax: +91 11 25747320 Email: [email protected] Tel: +91 44 24346425/24347608 Fax: +91 44 24346435 Email: [email protected]
Numerical Overcurrent & Earthfault Protection - MJT314
Tel: +91 33 22848320 Fax: +91 33 22848326 Email: [email protected] Telefax: +91 40 27817847 Email: [email protected]
Corporate Office Easun Reyrolle Limited. 98 Sipcot Industrial Complex Hosur 635 126 India. Tel: +91 4344 401600/01/02 Fax: +91 4344 276397 www.easunreyrolle.com
Cutout Details
SIZE 6 CASE
Ordering Information
ISO 9001-2000 The policy of Easun Reyrolle is one of continuous improvement and development. The company therefore reserves the right to supply equipment, which may differ slightly from that described and illustrated in this publication.
IDMTL / DTL phase fault overcurrent stage ( 50 / 51 ) IDMTL / DTL earth fault overcurrent stage ( 50N /51N) Dual DC transient free highsets for phase fault & earth fault Numerical, true RMS measurement Six characteristics
Control The relay has the following output contacts • Common Trip and Alarm 2 N/O • Protection Healthy 1 N/C • Starter operated 1 C/O • Phase fault operated 1 N/O • Earth fault operated 1 N/O • P/F highset1 operated 1 N/O • E/F highset1 operated 1 N/O • P/F highset2 operated 1 N/O • E/F highset2 operated 1 N/O
The draw-out case is provided with the required CT shorting contacts.
BANGALORE WORKS
AUTOMATION DIVISION
EXPORTS DIVISION
Mumbai
Delhi
Kolkata
Bangalore
Chennai
Secunderabad
FACT/MJT 314/07-06/Rev 0
#17/3 Arakere, Bannerghatta Road, Bangalore-560 076, India. Tel: +91 80 26581023 / 3268 Fax: +91 80 26580642 Email: [email protected] “Ashirwad”, #25, 29th Main, 4th B Cross, BTM Layout 2nd Stage, Bangalore-560 076, India. Tel: +91 80 26685496/51311405 Fax: +91 80 26685446 Email: [email protected]
• • • • •
The four modules viz. Input, Power supply Measuring and group change modules are plugged into the Front fascia which houses switches, LEDs and LCD display for the human machine interface. All PCB s are well protected from one another and from external environment with best shielding for better electromagnetic compatibility and housed in the enclosed chassis, which is withdrawable from the outer case.
Qualification
Ernavur, Chennai-600 057, India. Tel: +91 44 25733715/358 Fax: +91 44 25733468 Email: [email protected]
Protection
The current inputs can be configured for operation with either 1A or 5A ratings. Appropriate connections are required on the relay terminal blocks.
• Auxiliary Supply range • Communication protocol – IEC 60870 – 5 – 103 (or) MODBUS RTU
SWITCHGEAR WORKS
The MJT 314 over current relay combines the power and flexibility of microprocessor technology with decades of experience in the field of protection. A wide range of protection elements and characteristics are supplemented by advance features such as metering, fault recorder and communication.
The MJT Protection unit consists of the following modules within its dimensions. • Input Module • Power Supply and Output Relay module • Measuring Module & communication interface • Front Fascia • Group Change module
Note: 1. All dimensions are in mm 2. All dimensions are measured equidistant from centre line 3. Maximum depth of equipment inside panel : 200mm
#98, Sipcot Industrial Complex, Hosur 635 126, India. Tel: +91 4344 401600/01/02 Fax: +91 4344 276397
Features
Design
A B C 155 151 130.5
HOSUR WORKS
Description
MJT 314 offers inverse time and definite time over current protection for phase fault and earth fault with communication.
MODULAR CASES: SIZES 6
MJT 314
#17/3 Arakere, Bannerghatta Road, Bangalore-560 076, India. Tel: +91 80 26581023 / 3268 Fax: +91 80 26580642 Email: [email protected]
Applications • • • • •
Distribution feeders Transmission lines AC machines Capacitor banks Transformers
Sales Offices Tel: +91 22 22022270/22855415 Fax: +91 22 22825703 Email: [email protected] Tel: +91 80 26685496/51311405 Fax: +91 22 26685446 Email: [email protected] Bhopal
Telefax: +91 755 2684221 Email: [email protected]
Tel: +91 11 25747321/25747322 Fax: +91 11 25747320 Email: [email protected] Tel: +91 44 24346425/24347608 Fax: +91 44 24346435 Email: [email protected]
Numerical Overcurrent & Earthfault Protection - MJT314
Tel: +91 33 22848320 Fax: +91 33 22848326 Email: [email protected] Telefax: +91 40 27817847 Email: [email protected]
Corporate Office Easun Reyrolle Limited. 98 Sipcot Industrial Complex Hosur 635 126 India. Tel: +91 4344 401600/01/02 Fax: +91 4344 276397 www.easunreyrolle.com
Metering • True RMS measurements • Currents-Ir,Iy,Ib,Ie
Wiring Diagram
CT Input Rating Frequency
User Interface
• Push buttons for viewing/editing the settings and resetting
Communication • Data communication using IEC 60870-5-103 or MODBUS RTU Protocol
Operating Range VAUX 24V to 135V DC 43V to 280V DC
Digital (status) input Nominal Operating Range 30 V DC 18-36 V DC For higher input voltage up to 250 V DC, external dropping resistors will be supplied.
• RS485 communication electrical terminals at rear
Other Features Digital input for group changeover application Two group settings Storage of two fault records Internal real time clock Suitable for flashing faults Both 1A & 5A ratings in same relay Wide range of current settings Suitable for wide range of auxiliary Supply Non volatile memory for trip indication Low AC and DC burden Self-monitoring facility
1A/5A 50Hz
Auxiliary supply Nominal VAUX 30, 48, 110 V DC 110, 220 V DC 110 V AC
• Readable human machine interface with Backlit LCD display • LED indications
• • • • • • • • • • •
Technical Information
Protection Settings
Typical Wiring Diagram for MJT314
0.05xIn to 2.5xIn ∆ 0.01 In 0.05xIn to 2.5xIn ∆ 0.01 In 0.5xIn to 30xIn ∆ 0.5 In, off 0.5xIn to 30xIn ∆ 0.5 In, off 0.5xIn to 30xIn ∆ 0.5 In, off 0.5xIn to 30xIn ∆ 0.5 In, off 0.025 to 1.6 ∆ 0.001 0.025 to 1.6 ∆ 0.001 0 Secs to 20 Secs ∆ 0.01 Secs 0 Secs to 20 Secs ∆ 0.01 Secs 0 Secs to 20 Secs ∆ 0.01 Secs 0 Secs to 20 Secs ∆ 0.01 Secs Shaped Instantaneous 0 to 60 Secs ∆ 1 sec
Phase Fault Earth Fault Highset1 Phase Fault Highset1 Earth Fault Highset2 Phase Fault Highset2 Earth Fault P/F Time Multiplier E/F Time Multiplier P/F DTL E/F DTL P/F Highset1 DTL E/F Highset1 DTL Highset2 Reset Time
Inverse Characteristics Operating time can be calculated as follows: k t = ————— x Tm I α
[ I [-1 S
where I=fault current Is=current setting Tm=time multiplier SI3 - k = 0.14, α= SI1 - k = 0.0613, α = VI - k = 13.5, α= EI - k = 80.0, α= LTI - k = 120.0, α =
0.02 0.02 1.0 2.0 1.0
Output contacts The relay has the following output contacts • Common Trip and Alarm 2 N/O • Protection Healthy 1 N/C • Starter operated 1 C/O • Phase fault operated 1 N/O • Earth fault operated 1 N/O
• • • •
P/F highset1 operated E/F highset1 operated P/F highset2 operated E/F highset2 operated
Contact Rating Carry continuously Make & Carry Break
1 1 1 1
N/O N/O N/O N/O
5A AC rms or DC 20A for 0.2sec Resistive 75W DC Inductive 50W DC @L/R≤40msec with a maximum of 300V DC
Indication Green LED Protection healthy Orange LED Starter Red LED Trip Red LED (3mm) Submenu 16x2 Alphanumeric LCD display for settings, readings and fault data Burden AC Current Input 5 A Rating 1 A Rating Auxiliary input Quiescent (typical)
≤0.4 VA ≤0.05 VA 5 W (DC) 12VA (AC)
Environmental Temperature IEC 60068-2-1/2 Operating range -10° C to +55°C Storage range -25° C to +70°C Humidity IEC 60068-2-3 56 days at 40°C and 93%RH Transient Overvoltage IEC 60255-5 5KV, 1.2/50µs, 0.5J between all terminals and earth or between any two terminals without damage or flashover Insulation IEC 60255-5 2.0 KVrms for 1 min between all terminals and earth 2.0 KVrms for 1 min between independent circuits 1.0 KVrms for 1 min across normally open contacts High frequency Disturbance IEC 60255-22-1 Class III 2.5 KV Common (Longitudinal) mode 1.0 KV Series (Transverse) mode Electrostatic Discharge IEC 60255-22 -2 Class III 6 KV Contact Discharge 8 KV Air Discharge Radio Frequency Interference IEC 60255-22-3 Class III 20 MHz to 1000 MHz, 10V/m Fast Transient 2 KV, 5/50 ns, 2.5 kHz repetitive IEC 60255-22-4 Class III Vibration (Sinusoidal) IEC 60255-21-1 Class I Shock and Bump IEC 60255-21-2 Class I Mechanical Classification Durability
106 operations
Metering • True RMS measurements • Currents-Ir,Iy,Ib,Ie
Wiring Diagram
CT Input Rating Frequency
User Interface
• Push buttons for viewing/editing the settings and resetting
Communication • Data communication using IEC 60870-5-103 or MODBUS RTU Protocol
Operating Range VAUX 24V to 135V DC 43V to 280V DC
Digital (status) input Nominal Operating Range 30 V DC 18-36 V DC For higher input voltage up to 250 V DC, external dropping resistors will be supplied.
• RS485 communication electrical terminals at rear
Other Features Digital input for group changeover application Two group settings Storage of two fault records Internal real time clock Suitable for flashing faults Both 1A & 5A ratings in same relay Wide range of current settings Suitable for wide range of auxiliary Supply Non volatile memory for trip indication Low AC and DC burden Self-monitoring facility
1A/5A 50Hz
Auxiliary supply Nominal VAUX 30, 48, 110 V DC 110, 220 V DC 110 V AC
• Readable human machine interface with Backlit LCD display • LED indications
• • • • • • • • • • •
Technical Information
Protection Settings
Typical Wiring Diagram for MJT314
0.05xIn to 2.5xIn ∆ 0.01 In 0.05xIn to 2.5xIn ∆ 0.01 In 0.5xIn to 30xIn ∆ 0.5 In, off 0.5xIn to 30xIn ∆ 0.5 In, off 0.5xIn to 30xIn ∆ 0.5 In, off 0.5xIn to 30xIn ∆ 0.5 In, off 0.025 to 1.6 ∆ 0.001 0.025 to 1.6 ∆ 0.001 0 Secs to 20 Secs ∆ 0.01 Secs 0 Secs to 20 Secs ∆ 0.01 Secs 0 Secs to 20 Secs ∆ 0.01 Secs 0 Secs to 20 Secs ∆ 0.01 Secs Shaped Instantaneous 0 to 60 Secs ∆ 1 sec
Phase Fault Earth Fault Highset1 Phase Fault Highset1 Earth Fault Highset2 Phase Fault Highset2 Earth Fault P/F Time Multiplier E/F Time Multiplier P/F DTL E/F DTL P/F Highset1 DTL E/F Highset1 DTL Highset2 Reset Time
Inverse Characteristics Operating time can be calculated as follows: k t = ————— x Tm I α
[ I [-1 S
where I=fault current Is=current setting Tm=time multiplier SI3 - k = 0.14, α= SI1 - k = 0.0613, α = VI - k = 13.5, α= EI - k = 80.0, α= LTI - k = 120.0, α =
0.02 0.02 1.0 2.0 1.0
Output contacts The relay has the following output contacts • Common Trip and Alarm 2 N/O • Protection Healthy 1 N/C • Starter operated 1 C/O • Phase fault operated 1 N/O • Earth fault operated 1 N/O
• • • •
P/F highset1 operated E/F highset1 operated P/F highset2 operated E/F highset2 operated
Contact Rating Carry continuously Make & Carry Break
1 1 1 1
N/O N/O N/O N/O
5A AC rms or DC 20A for 0.2sec Resistive 75W DC Inductive 50W DC @L/R≤40msec with a maximum of 300V DC
Indication Green LED Protection healthy Orange LED Starter Red LED Trip Red LED (3mm) Submenu 16x2 Alphanumeric LCD display for settings, readings and fault data Burden AC Current Input 5 A Rating 1 A Rating Auxiliary input Quiescent (typical)
≤0.4 VA ≤0.05 VA 5 W (DC) 12VA (AC)
Environmental Temperature IEC 60068-2-1/2 Operating range -10° C to +55°C Storage range -25° C to +70°C Humidity IEC 60068-2-3 56 days at 40°C and 93%RH Transient Overvoltage IEC 60255-5 5KV, 1.2/50µs, 0.5J between all terminals and earth or between any two terminals without damage or flashover Insulation IEC 60255-5 2.0 KVrms for 1 min between all terminals and earth 2.0 KVrms for 1 min between independent circuits 1.0 KVrms for 1 min across normally open contacts High frequency Disturbance IEC 60255-22-1 Class III 2.5 KV Common (Longitudinal) mode 1.0 KV Series (Transverse) mode Electrostatic Discharge IEC 60255-22 -2 Class III 6 KV Contact Discharge 8 KV Air Discharge Radio Frequency Interference IEC 60255-22-3 Class III 20 MHz to 1000 MHz, 10V/m Fast Transient 2 KV, 5/50 ns, 2.5 kHz repetitive IEC 60255-22-4 Class III Vibration (Sinusoidal) IEC 60255-21-1 Class I Shock and Bump IEC 60255-21-2 Class I Mechanical Classification Durability
106 operations
Genesis Range Numerical Overcurrent & Earthfault Protection
Cutout Details
SIZE 6 CASE
Ordering Information
ISO 9001-2000 The policy of Easun Reyrolle is one of continuous improvement and development. The company therefore reserves the right to supply equipment, which may differ slightly from that described and illustrated in this publication.
IDMTL / DTL phase fault overcurrent stage ( 50 / 51 ) IDMTL / DTL earth fault overcurrent stage ( 50N /51N) Dual DC transient free highsets for phase fault & earth fault Numerical, true RMS measurement Six characteristics
Control The relay has the following output contacts • Common Trip and Alarm 2 N/O • Protection Healthy 1 N/C • Starter operated 1 C/O • Phase fault operated 1 N/O • Earth fault operated 1 N/O • P/F highset1 operated 1 N/O • E/F highset1 operated 1 N/O • P/F highset2 operated 1 N/O • E/F highset2 operated 1 N/O
The draw-out case is provided with the required CT shorting contacts.
BANGALORE WORKS
AUTOMATION DIVISION
EXPORTS DIVISION
Mumbai
Delhi
Kolkata
Bangalore
Chennai
Secunderabad
FACT/MJT 314/07-06/Rev 0
#17/3 Arakere, Bannerghatta Road, Bangalore-560 076, India. Tel: +91 80 26581023 / 3268 Fax: +91 80 26580642 Email: [email protected] “Ashirwad”, #25, 29th Main, 4th B Cross, BTM Layout 2nd Stage, Bangalore-560 076, India. Tel: +91 80 26685496/51311405 Fax: +91 80 26685446 Email: [email protected]
• • • • •
The four modules viz. Input, Power supply Measuring and group change modules are plugged into the Front fascia which houses switches, LEDs and LCD display for the human machine interface. All PCB s are well protected from one another and from external environment with best shielding for better electromagnetic compatibility and housed in the enclosed chassis, which is withdrawable from the outer case.
Qualification
Ernavur, Chennai-600 057, India. Tel: +91 44 25733715/358 Fax: +91 44 25733468 Email: [email protected]
Protection
The current inputs can be configured for operation with either 1A or 5A ratings. Appropriate connections are required on the relay terminal blocks.
• Auxiliary Supply range • Communication protocol – IEC 60870 – 5 – 103 (or) MODBUS RTU
SWITCHGEAR WORKS
The MJT 314 over current relay combines the power and flexibility of microprocessor technology with decades of experience in the field of protection. A wide range of protection elements and characteristics are supplemented by advance features such as metering, fault recorder and communication.
The MJT Protection unit consists of the following modules within its dimensions. • Input Module • Power Supply and Output Relay module • Measuring Module & communication interface • Front Fascia • Group Change module
Note: 1. All dimensions are in mm 2. All dimensions are measured equidistant from centre line 3. Maximum depth of equipment inside panel : 200mm
#98, Sipcot Industrial Complex, Hosur 635 126, India. Tel: +91 4344 401600/01/02 Fax: +91 4344 276397
Features
Design
A B C 155 151 130.5
HOSUR WORKS
Description
MJT 314 offers inverse time and definite time over current protection for phase fault and earth fault with communication.
MODULAR CASES: SIZES 6
MJT 314
#17/3 Arakere, Bannerghatta Road, Bangalore-560 076, India. Tel: +91 80 26581023 / 3268 Fax: +91 80 26580642 Email: [email protected]
Applications • • • • •
Distribution feeders Transmission lines AC machines Capacitor banks Transformers
Sales Offices Tel: +91 22 22022270/22855415 Fax: +91 22 22825703 Email: [email protected] Tel: +91 80 26685496/51311405 Fax: +91 22 26685446 Email: [email protected] Bhopal
Telefax: +91 755 2684221 Email: [email protected]
Tel: +91 11 25747321/25747322 Fax: +91 11 25747320 Email: [email protected] Tel: +91 44 24346425/24347608 Fax: +91 44 24346435 Email: [email protected]
Numerical Overcurrent & Earthfault Protection - MJT314
Tel: +91 33 22848320 Fax: +91 33 22848326 Email: [email protected] Telefax: +91 40 27817847 Email: [email protected]
Corporate Office Easun Reyrolle Limited. 98 Sipcot Industrial Complex Hosur 635 126 India. Tel: +91 4344 401600/01/02 Fax: +91 4344 276397 www.easunreyrolle.com
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