2-14 D30 Line Distance Protection System GE Multilin2.2 SPECIFICATIONS 2 PRODUCT DESCRIPTION2DIGITAL ELEMENTSNumber of elements: 48Operating signal: any FlexLogic™ operandPickup delay: 0.000 to 999999.999 s in steps of 0.001Dropout delay: 0.000 to 999999.999 s in steps of 0.001Timing accuracy: ±3% or ±4 ms, whichever is greater2.2.3 MONITORINGOSCILLOGRAPHYMaximum records: 64Sampling rate: 64 samples per power cycleTriggers: any element pickup, dropout, or operate;digital input change of state; digital out-put change of state; FlexLogic™ equa-tionData: AC input channels; element state; digitalinput state; digital output stateData storage: in non-volatile memoryEVENT RECORDERCapacity: 1024 eventsTime-tag: to 1 microsecondTriggers: any element pickup, dropout, or operate;digital input change of state; digital out-put change of state; self-test eventsData storage: in non-volatile memoryFAULT LOCATORMethod: single-endedVoltage source: wye-connected VTs, delta-connectedVTs and neutral voltage, delta-connectedVTs and zero-sequence current (approxi-mation)Maximum accuracy if: fault resistance is zero or fault currentsfrom all line terminals are in phaseRelay accuracy: ±1.5% (V > 10 V, I > 0.1 pu)Worst-case accuracy:VT%error + user dataCT %error + user dataZLine%error + user dataMETHOD%error + see chapter 8RELAY ACCURACY %error + (1.5%)2.2.4 METERINGRMS CURRENT: PHASE, NEUTRAL, AND GROUNDAccuracy at0.1 to 2.0 CT rating: ±0.25% of reading or ±0.1% of rated(whichever is greater)2.0 CT rating: ±1.0% of readingRMS VOLTAGEAccuracy: ±0.5% of reading from 10 to 208 VREAL POWER (WATTS)Accuracy: ±1.0% of reading at–0.8 PF –1.0 and 0.8 PF 1.0REACTIVE POWER (VARS)Accuracy: ±1.0% of reading at –0.2 PF 0.2APPARENT POWER (VA)Accuracy: ±1.0% of readingFREQUENCYAccuracy atV = 0.8 to 1.2 pu: ±0.001 Hz (when voltage signal is usedfor frequency measurement)I = 0.1 to 0.25 pu: ±0.05 HzI > 0.25 pu: ±0.001 Hz (when current signal is usedfor frequency measurement)2.2.5 INPUTSAC CURRENTCT rated primary: 1 to 50000 ACT rated secondary: 1 A or 5 A by connectionNominal frequency: 20 to 65 HzRelay burden: < 0.2 VA at rated secondaryConversion range:Standard CT: 0.02 to 46 CT rating RMS symmetricalSensitive Ground CT module:0.002 to 4.6 CT rating RMS symmetricalCurrent withstand: 20 ms at 250 times rated1 sec. at 100 times ratedcontinuous at 3 times ratedShort circuit rating: 150000 RMS symmetrical amperes, 250V maximum (primary current to externalCT)AC VOLTAGEVT rated secondary: 50.0 to 240.0 VVT ratio: 1.00 to 24000.00Nominal frequency: 20 to 65 HzRelay burden: < 0.25 VA at 120 VConversion range: 1 to 275 VVoltage withstand: continuous at 260 V to neutral1 min./hr at 420 V to neutral
