ABB SPAJ 140 C PROTECTION RELAY

ABB SPAJ 140 C PROTECTION RELAY About

ABB SPAJ 140 C PROTECTION RELAY

Three-phase, low-set phase overcurrent unitwith definite time or inverse definite minimumtime (IDMT) characteristicThree-phase, high-set phase overcurrent unitwith instantaneous or definite time functionLow-set, non-directional earth-fault unit withdefinite time or inverse definite minimum time(IDMT) characteristicHigh-set, non-directional earth-fault unit withinstantaneous or definite time functionBuilt-in breaker failure protection functionTwo heavy-duty and four light-duty outputrelays with field-selectable configurationExtensive data communication capabilities overbuilt-in serial portOutstanding design flexibility for easy selectionof appropriate operation schemes for differentapplicationsNumerical display of setting values, measuredvalues, memorized fault values, fault codes etc.Enhanced system reliability and availability dueto continuous hardware and software self-supervision with auto-diagnosisPowerful software support for setting andparametrizing of the relay and for recording ofrelay parameters with a portable PC.