About Us About Us Management Team Management Team Board Of
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About Us About Us Management Team Management Team Board of Director Board of Director Board of Advisor Board of Advisor Nexge Softswitch Nexge Softswitch Nexge Feature Server Nexge Feature Server Nexge IVR Server Nexge IVR Server Nexge VoIP Billing Server Nexge VoIP Billing Server Nexge SMS Server Nexge SMS Server Nexge PC Softphones Nexge PC Softphones Nexge Click-2-Talk Nexge Click-2-Talk
Products Products Instruments Transformers Instruments Transformers Line Traps Line Traps Testing Equipments Testing Equipments Other Products Other Products
GYRO GROUP
Applications
Direct measurement of voltage in High Voltage System is not possible because of insulation problem of measuring instruments. It is also not possible to apply high voltage directly to protective relays used for system protection due to high insulation problem. Therefore voltage transformers are used to step down high voltage to a low value accurately in proportion to their ratios. Basic Functions of Potential Transformers are :To transform the line voltage with reasonably good accuracy to a value which is suitable for standard measuring instruments relays etc. To isolate the measuring instruments, meters, relays etc. from high voltage side of an electrical installation. To sense abnormalities in voltage and give voltage signals to protective relays to isolate the defective system. Technical information required for tendering :RATIO NUMBER OF SECONDARY WINDINGS VA BURDEN OF EACH WINDINGS ACCURACY CLASS OF EACH WINDINGS VOLTAGE FACTOR AND ITS DURATION VOLTAGE CLASS SYSTEM CONDITIONS
Copyright © 2008 Gyro Group.
Applications
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Direct measurement of high current at high voltage system is not possible because of limitation and insulation problem of measuring instruments. It is also not possible to use current flowing through the system directly for protection purpose due to its high value and high insulation problem.
Basic Functions of Current Transformers are :To transform the line current with a specified accuracy to a value which is suitable for standard measuring instruments, relays etc. To isolate the measuring instruments, meters, relays etc. from high voltage side of To protect measuring instruments against short circuit currents. To sense abnormalities in current and give current signals to protective relays to isolate the defective system.
Technical information required for tendering :RATIO NUMBER OF CORES VA BURDEN OF EACH CORE ACCURACY CLASS ACCURACY LIMIT FACTOR FOR PROTECTION CORE FOR CLASS PS - MIN. KNEE VOLTAGE, EXCITATION CURRENT & RCT AT 75 DEG.C. RATED SHORT TIME CURRENT RATING AND DURATION. VOLTAGE CLASS SYSTEM CONDITIONS.
Products Products Instruments Transformers Instruments Transformers Line Traps Line Traps Testing Equipments Testing Equipments Other Products Other Products
GYRO GROUP
Applications
Direct measurement of voltage in High Voltage System is not possible because of insulation problem of measuring instruments. It is also not possible to apply high voltage directly to protective relays used for system protection due to high insulation problem. Therefore voltage transformers are used to step down high voltage to a low value accurately in proportion to their ratios. Basic Functions of Potential Transformers are :To transform the line voltage with reasonably good accuracy to a value which is suitable for standard measuring instruments relays etc. To isolate the measuring instruments, meters, relays etc. from high voltage side of an electrical installation. To sense abnormalities in voltage and give voltage signals to protective relays to isolate the defective system. Technical information required for tendering :RATIO NUMBER OF SECONDARY WINDINGS VA BURDEN OF EACH WINDINGS ACCURACY CLASS OF EACH WINDINGS VOLTAGE FACTOR AND ITS DURATION VOLTAGE CLASS SYSTEM CONDITIONS
Copyright © 2008 Gyro Group.
Applications
Site Designed by Ace Smart
Direct measurement of high current at high voltage system is not possible because of limitation and insulation problem of measuring instruments. It is also not possible to use current flowing through the system directly for protection purpose due to its high value and high insulation problem.
Basic Functions of Current Transformers are :To transform the line current with a specified accuracy to a value which is suitable for standard measuring instruments, relays etc. To isolate the measuring instruments, meters, relays etc. from high voltage side of To protect measuring instruments against short circuit currents. To sense abnormalities in current and give current signals to protective relays to isolate the defective system.
Technical information required for tendering :RATIO NUMBER OF CORES VA BURDEN OF EACH CORE ACCURACY CLASS ACCURACY LIMIT FACTOR FOR PROTECTION CORE FOR CLASS PS - MIN. KNEE VOLTAGE, EXCITATION CURRENT & RCT AT 75 DEG.C. RATED SHORT TIME CURRENT RATING AND DURATION. VOLTAGE CLASS SYSTEM CONDITIONS.
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