MiCOM Protection - Schneider

MOTOR AND GENERATOR MANAGEMENT RELAYSCT InputsVT inputsOpto Inputs (max) 1Device P220 P225 P226C P241 P242 P243 P341 P342 P343 P3444 4 4 4 4 7 4 5 8 8- 1 1 3 3 3 4 4 4 55 6 7 8 16 16 16 24 32 32P3459632Output Contacts (max) 16 6 8 7 16 16 15 24323232RTDs/thermistors (option)Analogue I/O (option)Function Keys/HotkeysInterlocking LogicProtectionMotor Protection- Short circuit 50/51- Motor Differential 87M- Locked Rotor 50S/51LR/51S- Reverse Power 32R- Reacceleration 27LV- Startup Monitoring/Excessive long start 66/48/51- Negative sequence overvoltage 47- Out of Step 55- Loss of load 37- Undercurrent 37P/37N- Unbalance/Lock-out 30/46/86- Speed switch inputs14- Anti BackspinGenerator Protection- Generator Differential 87G- Interturn/split phase 50DT- Underimpedance 21- Pole Slipping 78- Directional Power 32L/O/R- Loss of Field 40- Restricted earthfault 64- 100% Stator earth fault (3rd harmonic) 27TN- 100% Stator Earth Fault (Low Freq. Injection) 64S- Overfluxing 24- Unintentional energisation at standstill 50/27- Voltage dependent O/C- Rotor Earth Fault51V64RAncillary FunctionsPhase overcurrent 50/51PPhase directional67PGround fault50N/51NGround Fault directional67NSensitive directional earthfault67NWattmetric earthfault64N/32NNegative sequence overcurrent460CNegative sequence thermal46TThermal overload 38/49Under/Over voltage 27/59Residual over voltage59NNegative sequence overvoltage 47Under frequency81UOver frequency81OTurbine abnormal frequency81ABVoltage vector shiftdVθRate of change of frequency81RCircuit breaker failure50BFCircuit breaker monitoringTrip Circuit SupervisionTCS6/0 or 4/2 10/3 - 10/0 10/0 10/0 - 10/00/1 0/2 - 4/4 4/4 4/4 4/4 4/4- - X X X X X X- - - X X X X XX-X-XX--XXXX-----------X-X-----X------X X X X X- - - - X - -X X X X X - -- - X X X - -X X X X X - -X X X X X - -- - X X X - -- - X X X - -X X X X X - -X X X X X - -X X X X X - -X X X X XX X X X X- - - - - - -- - - - - - -- - - - - - X- - - - - - -- - - - - X X- - X X X - X- - - - - X X- - - - - - -- - - - - - X- - - - - - X- - - - - - XX X X X X X X- - - - - X XX X X X X X X- - - - - X -- - X X X - X- - X X X X XX X X X X - X---X--XX--XX--XX--XX--XXXXXX--XXX X X X X X X X10/04/4XXXXXXXXXXXXXXXXX-XXXXXXXX--XXX10/04/4XX- -- -- -- -- -- -- -- -- -- -- - - - - - X X XX X X X X X XX X X X X X X- - X X X X X- - - - - X X X X- - X X X X X- - - - - X X- - - - - - X X XXXXXXXXXXXXXXXXX-XXXXXXXX--XXX10/04/4XX----------XXXXXXXXXXXXXXXX-XXXXXXXXXXX--XXX1. Please note that some relays may have a limit on max. I/O when used as a combination.