6-10 D30 Line Distance Protection System GE Multilin6.3 METERING 6 ACTUAL VALUES66.3METERING 6.3.1 METERING CONVENTIONSa) UR CONVENTION FOR MEASURING POWERThe following figure illustrates the conventions established for use in UR-series relays.Figure 6–1: FLOW DIRECTION OF SIGNED VALUES FOR WATTS AND VARS827239AC.CDRPER IEEE CONVENTIONSPARAMETERS AS SEENBY THE UR RELAYVoltageWATTS = PositiveVARS = PositivePF = LagCurrentVoltageWATTS = PositiveVARS = NegativePF = LeadCurrentVoltageWATTS = NegativeVARS = NegativePF = LagCurrentVoltageWATTS = NegativeVARS = PositivePF = LeadCurrentGeneratorGeneratorInductiveInductive ResistiveResistiveGeneratorGeneratorUR RELAYUR RELAYUR RELAYUR RELAYGGMMGGVCGICVAGIAVBGIB1-VCGICVAGIAVBGIB2-VCGICVAGIAVBGIB3-VCGICVAGIAVBGIB4-+Q+Q+Q+QPF = LeadPF = LeadPF = LeadPF = LeadPF = LagPF = LagPF = LagPF = LagPF = LagPF = LagPF = LagPF = LagPF = LeadPF = LeadPF = LeadPF = Lead-Q-Q-Q-Q-P-P-P-P+P+P+P+PIAIAIAIAS=VIS=VIS=VIS=VILOADLOADResistiveResistiveLOADLOAD
