GE G60 Instruction Manual

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Contents

2-10 G60 Generator Management Relay GE Multilin2.2 SPECIFICATIONS 2 PRODUCT DESCRIPTION2Timing curves: Definite Time; Inverse A, B, and C,FlexCurves™ A, B, C, and DTD Multiplier: 0.05 to 600.00 s in steps of 0.01Reset delay: 0.0 to 1000.0 s in steps of 0.1Timing accuracy: ±3% or ±15 cycles (whichever is greater)100% STATOR GROUNDOperating quantity:Pickup level: 0.000 to 0.250 pu in steps of 0.001Dropout level: 97 to 98% of pickupLevel accuracy: ±2% of reading from 1 to 120 VPickup delay: 0 to 600.00 s in steps of 0.013rd harmonic supervision level: 0.0010 to 0.1000 pu in steps of0.0001Time accuracy: ±3% or ±20 ms, whichever is greaterOperate time: < 30 ms at 1.10 × pickup at 60 HzUNDERFREQUENCYMinimum signal: 0.10 to 1.25 pu in steps of 0.01Pickup level: 20.00 to 65.00 Hz in steps of 0.01Dropout level: pickup + 0.03 HzLevel accuracy: ±0.001 HzTime delay: 0 to 65.535 s in steps of 0.001Timer accuracy: ±3% or 4 ms, whichever is greaterOperate time: typically 4 cycles at 0.1 Hz/s changetypically 3.5 cycles at 0.3 Hz/s changetypically 3 cycles at 0.5 Hz/s changeOVERFREQUENCYPickup level: 20.00 to 65.00 Hz in steps of 0.01Dropout level: pickup – 0.03 HzLevel accuracy: ±0.001 HzTime delay: 0 to 65.535 s in steps of 0.001Timer accuracy: ±3% or 4 ms, whichever is greaterOperate time: typically 4 cycles at 0.1 Hz/s changetypically 3.5 cycles at 0.3 Hz/s changetypically 3 cycles at 0.5 Hz/s changeRATE OF CHANGE OF FREQUENCYdf/dt trend: increasing, decreasing, bi-directionaldf/dt pickup level: 0.10 to 15.00 Hz/s in steps of 0.01df/dt dropout level: 96% of pickupdf/dt level accuracy: 30 mHz/s or 3.5%, whichever is greaterOvervoltage supv.: 0.100 to 3.000 pu in steps of 0.001Overcurrent supv.: 0.000 to 30.000 pu in steps of 0.001Pickup delay: 0 to 65.535 s in steps of 0.001Reset delay: 0 to 65.535 s in steps of 0.001Time accuracy: ±3% or ±4 ms, whichever is greater95% settling time for df/dt: < 24 cyclesOperate time: at 2 × pickup: 6 cyclesat 3 × pickup: 5 cyclesat 5 × pickup: 4 cyclesSYNCHROCHECKMax voltage difference: 0 to 400000 V in steps of 1Max angle difference: 0 to 100° in steps of 1Max freq. difference: 0.00 to 2.00 Hz in steps of 0.01Hysteresis for max. freq. diff.: 0.00 to 0.10 Hz in steps of 0.01Dead source function: None, LV1 & DV2, DV1 & LV2, DV1 orDV2, DV1 xor DV2, DV1 & DV2(L = Live, D = Dead)POWER SWING DETECTFunctions: Power swing block, Out-of-step tripCharacteristic: Mho or QuadMeasured impedance: Positive-sequenceBlocking / tripping modes: 2-step or 3-stepTripping mode: Early or DelayedCurrent supervision:Pickup level: 0.050 to 30.000 pu in steps of 0.001Dropout level: 97 to 98% of pickupFwd / reverse reach (sec. Ω): 0.10 to 500.00 Ω in steps of 0.01Left and right blinders (sec. Ω): 0.10 to 500.00 Ω in steps of 0.01Impedance accuracy: ±5%Fwd / reverse angle impedances: 40 to 90° in steps of 1Angle accuracy: ±2°Characteristic limit angles: 40 to 140° in steps of 1Timers: 0.000 to 65.535 s in steps of 0.001Timing accuracy: ±3% or 4 ms, whichever is greaterACCIDENTAL ENERGIZATIONOperating condition: OvercurrentArming condition: Undervoltage and/or Machine OfflineOvercurrent:Pickup level: 0.000 to 3.000 pu in steps of 0.001Dropout level: 97 to 98% of pickupLevel accuracy: ±0.5% of reading from0.1 to 2.0 × CT ratingUndervoltage:Pickup level: 0.000 to 3.000 pu in steps of 0.001Dropout level: 102 to 103% of pickupLevel accuracy: ±0.5% of reading 10 to 208 VOperate Time: < 30 ms at 1.10 × pickup at 60 HzLOSS OF EXCITATIONOperating condition: Positive-sequence impedanceCharacteristic: 2 independent offset mho circlesCenter: 0.10 to 300.0 Ω (sec.) in steps of 0.01Radius: 0.10 to 300.0 Ω (sec.) in steps of 0.01Reach accuracy: ±3%Undervoltage supervisionLevel: 0.000 to 1.250 pu in steps of 0.001Accuracy: ±0.5% of reading from 10 to 208 VPickup delay: 0 to 65.535 s in steps of 0.001Timing accuracy: ±3% or ±20 ms, whichever is greaterOperate time: <50 msV_neutral_3rdV_neutral_3rd V_zero_3rd+----------------------------------------------------------------------------