OVERCURRENT PROTECTION RELAY BLOCK MICOM P120

Application:-
1. Phase and earth fault overcurrent protections applicable in HV and MV substations and to protect MV and LV transformers

Protections:-
1. P120:
2. Single-phase or earth fault overcurrent, 3-stage DT or IDMT, co-operation with core balanced CT or in Holmgreen arrangement
3. Earth fault, 3-stage DT or IDMT, co-operation with core balanced CT or in Holmgreen arrangement

Measurements
1. Phase currents
2. Earth current

Functions:-
1. 2 setting group
2.Circuit breaker control
3. CB status monitoring
4. Protection blocking logic
5. Output contact latching
6. Programmable binary inputs, outputs relays and LEDs, 2 inputs / 4 outputs
7. Communication in RS485/RS232 standard
8.• Transmission protocols: Courier, Modbus, IEC60870-5-103 and DNP 3.0
• Recording of:
• Events – 250
• Faults – 25 (1600 Hz, 3s window)
• Triggers – 25
• Trips – 5 (display)