13.07.2015 Views

MiCOM P921/P922/P923 - Schneider - error

MiCOM P921/P922/P923 - Schneider - error

MiCOM P921/P922/P923 - Schneider - error

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P92x/EN CO/F22Page 4/10Connection Diagrams<strong>MiCOM</strong> <strong>P921</strong>/<strong>P922</strong>/<strong>P923</strong>1.1.2 3VTs (phase-neutral) + residual VT configurationSelect the « 3V PN+ V R» configuration in the « CONFIGURATION » menu and in the« GENERAL » sub-menu.The 3 phase voltages VA, VB, VC and the residual voltage VR are then measuredby the <strong>MiCOM</strong> relay.3VTs CONFIGURATION (Phase-Neutral) + residual voltageACPhase rotationBPowersupply+-3334WDRL1373536642WatchdogOutput contacts (programmable) :RL1RL212108RL241RL31614RL34243RL42018RL44445RL531RL5Programmable inputs :EL1EL2EL3EL4EL5464950+22_242628171921232527See note 2See note 1RL6RL7RL8*759111315LEDs29303132+_RL6RL7RL84 programmable LEDsEarthconnection-+ _+ _+ _+ _P0390ENaCommunication port RS485(* System end resistance.For last relay, connect 30 and 32 together)Notes :(1) Additional hardware for <strong>MiCOM</strong> <strong>P922</strong> and <strong>P923</strong> relay(2) Additional hardware for <strong>MiCOM</strong> <strong>P922</strong> and <strong>P923</strong> relayScheme representing <strong>MiCOM</strong> relay offFIGURE 2: 3VTs + RESIDUAL VT CONNECTION

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