GE Multilin L60 Line Phase Comparison System 2-112 PRODUCT DESCRIPTION 2.2 SPECIFICATIONS2NEGATIVE SEQUENCE TOCCurrent: PhasorPickup level: 0.000 to 30.000 pu in steps of 0.001Dropout level: 97% to 98% of pickupLevel accuracy: ±0.5% of reading or ±0.4% of rated(whichever is greater)from 0.1 to 2.0 x CT rating±1.5% of reading > 2.0 x CT ratingCurve shapes: IEEE Moderately/Very/ExtremelyInverse; IEC (and BS) A/B/C and ShortInverse; GE IAC Inverse, Short/Very/Extremely Inverse; I 2 t; FlexCurves™(programmable); Definite Time (0.01 sbase curve)Curve multiplier (Time dial): 0.00 to 600.00 in steps of 0.01Reset type: Instantaneous/Timed (per IEEE) and Lin-earTiming accuracy: Operate at > 1.03 × actual pickup±3.5% of operate time or ±½ cycle(whichever is greater)NEGATIVE SEQUENCE IOCCurrent: PhasorPickup level: 0.000 to 30.000 pu in steps of 0.001Dropout level: 97 to 98% of pickupLevel accuracy: 0.1 to 2.0 × CT rating: ±0.5% of readingor ±0.4% of rated (whichever is greater);> 2.0 × CT rating: ±1.5% of readingOverreach: < 2%Pickup delay: 0.00 to 600.00 s in steps of 0.01Reset delay: 0.00 to 600.00 s in steps of 0.01Operate time: < 20 ms at 3 × pickup at 60 HzTiming accuracy: Operate at 1.5 × pickup±3% or ±4 ms (whichever is greater)PHASE DIRECTIONAL OVERCURRENTRelay connection: 90 ° (quadrature)Quadrature voltage: ABC phase seq.: phase A (V BC ), phaseB (V CA ), phase C (VAB ); ACB phaseseq.: phase A (V CB ), phase B (VAC ),phase C (VBA )Polarizing voltage threshold: 0.000 to 3.000 pu in steps of 0.001Current sensitivity threshold: 0.05 puCharacteristic angle: 0 to 359 ° in steps of 1Angle accuracy: ±2°Operation time (FlexLogic™ operands):Tripping (reverse load, forward fault):<12 ms, typicallyBlocking (forward load, reverse fault):<8 ms, typicallyNEUTRAL DIRECTIONAL OVERCURRENTDirectionality: Co-existing forward and reversePolarizing: Voltage, Current, DualPolarizing voltage: V_0 or VXPolarizing current: IGOperating current: I_0Level sensing: 3 × (|I_0| – K × |I_1|), IGRestraint, K: 0.000 to 0.500 in steps of 0.001Characteristic angle: –90 to 90° in steps of 1Limit angle: 40 to 90° in steps of 1, independent forforward and reverseAngle accuracy: ±2°Offset impedance: 0.00 to 250.00 Ω in steps of 0.01Pickup level: 0.002 to 30.000 pu in steps of 0.01Dropout level: 97 to 98%Operation time: < 16 ms at 3 × pickup at 60 HzNEGATIVE SEQUENCE DIRECTIONAL OCDirectionality: Co-existing forward and reversePolarizing: VoltagePolarizing voltage: V_2Operating current: I_2Level sensing:Zero-sequence:|I_0| – K × |I_1|Negative-sequence:|I_2| – K × |I_1|Restraint, K: 0.000 to 0.500 in steps of 0.001Characteristic angle: 0 to 90° in steps of 1Limit angle: 40 to 90° in steps of 1, independent forforward and reverseAngle accuracy: ±2°Offset impedance: 0.00 to 250.00 Ω in steps of 0.01Pickup level: 0.015 to 30.000 pu in steps of 0.01Dropout level: 97 to 98%Operation time: < 16 ms at 3 × pickup at 60 HzWATTMETRIC ZERO-SEQUENCE DIRECTIONALMeasured power: zero-sequenceNumber of elements: 2Characteristic angle: 0 to 360° in steps of 1Minimum power: 0.001 to 1.200 pu in steps of 0.001Pickup level accuracy: ±1% or ±0.0025 pu, whichever is greaterHysteresis: 3% or 0.001 pu, whichever is greaterPickup delay: definite time (0 to 600.00 s in steps of0.01), inverse time, or FlexCurveInverse time multiplier: 0.01 to 2.00 s in steps of 0.01Time accuracy: ±3% or ±20 ms, whichever is greaterOperate time: <30 ms at 60 Hz
