Overcurrent Relay

Schneider Micom P127 relay is part of MiCOM P12x, a range of directional and non-directional overcurrent relays from single-phase or earth fault up to the multifunctional three-phase P127 numerical relay with voltage protection functions. Models available: MiCOM P120, MiCOM P121, MiCOM P122, MiCOM P123, MiCOM P125, MiCOM P126, MiCOM P127
Overcurrent ANSI code: 50/51
Recloser ANSI code: 79
Cold load pick-up
Earth fault ANSI code: 50G/51G
Lockout ANSI code: 86
Negative sequence overvoltage ANSI code: 47
Undervoltage ANSI code: 27
Overvoltage ANSI code: 59
Rate of change of frequency ANSI code: 81R
Neutral voltage displacement ANSI code: 59N
Thermal overload protection ANSI code: 49RMS
Under frequency ANSI code: 81L
Phase undercurrent ANSI code: 37
Breaker failure ANSI code: 50BF
Negative sequence overcurrent ANSI code: 46
Restricted earth fault ANSI code: 64REF
Directional earth fault ANSI code: 67N
Directional phase overcurrent ANSI code: 67
Over frequency ANSI code: 81O
Voltage-restrained overcurrent ANSI code: 50V/51V

CGI 14N/C is a numerical over current and earth fault relay, entirely digitized and integrated with microprocessor technology. ... The relay uses a computational hardware called digital signal processor (DSP) and software, accompanies it. Therelay is integrated with IDMT function.