2-16 L90 Line Current Differential System GE Multilin2.4 SPECIFICATIONS 2 PRODUCT DESCRIPTION22.4SPECIFICATIONS 2.4.1 PROTECTION ELEMENTSThe operating times below include the activation time of a trip rated form-A output contact unless otherwise indi-cated. FlexLogic operands of a given element are 4 ms faster. Take this into account when using FlexLogic to inter-connect with other protection or control elements of the relay, building FlexLogic equations, or interfacing with otherIEDs or power system devices via communications or different output contacts.PHASE DISTANCECharacteristic: mho (memory polarized or offset) orquad (memory polarized or non-direc-tional), selectable individually per zoneNumber of zones: 5Directionality: forward, reverse, or non-directionalReach (secondary ): 0.02 to 500.00 in steps of 0.01Reach accuracy: ±5% including the effect of CVT tran-sients up to an SIR of 30Distance:Characteristic angle: 30 to 90° in steps of 1Comparator limit angle: 30 to 90° in steps of 1Directional supervision:Characteristic angle: 30 to 90° in steps of 1Limit angle: 30 to 90° in steps of 1Right blinder (Quad only):Reach: 0.02 to 500 in steps of 0.01Characteristic angle: 60 to 90° in steps of 1Left Blinder (Quad only):Reach: 0.02 to 500 in steps of 0.01Characteristic angle: 60 to 90° in steps of 1Time delay: 0.000 to 65.535 s in steps of 0.001Timing accuracy: ±3% or 4 ms, whichever is greaterCurrent supervision:Level: line-to-line currentPickup: 0.050 to 30.000 pu in steps of 0.001Dropout: 97 to 98%Memory duration: 5 to 25 cycles in steps of 1VT location: all delta-wye and wye-delta transformersCT location: all delta-wye and wye-delta transformersVoltage supervision pickup (series compensation applications):0 to 5.000 pu in steps of 0.001Operation time: 1 to 1.5 cycles (typical)Reset time: 1 power cycle (typical)GROUND DISTANCECharacteristic: Mho (memory polarized or offset) orQuad (memory polarized or non-direc-tional)Reactance polarization: negative-sequence or zero-sequencecurrentNon-homogeneity angle: –40 to 40° in steps of 1Number of zones: 5Directionality: forward, reverse, or non-directionalReach (secondary ): 0.02 to 500.00 in steps of 0.01Reach accuracy: ±5% including the effect of CVT tran-sients up to an SIR of 30Distance characteristic angle: 30 to 90° in steps of 1Distance comparator limit angle: 30 to 90° in steps of 1Directional supervision:Characteristic angle: 30 to 90° in steps of 1Limit angle: 30 to 90° in steps of 1Zero-sequence compensationZ0/Z1 magnitude: 0.00 to 10.00 in steps of 0.01Z0/Z1 angle: –90 to 90° in steps of 1Zero-sequence mutual compensationZ0M/Z1 magnitude: 0.00 to 7.00 in steps of 0.01Z0M/Z1 angle: –90 to 90° in steps of 1Right blinder (Quad only):Reach: 0.02 to 500 in steps of 0.01Characteristic angle: 60 to 90° in steps of 1Left blinder (Quad only):Reach: 0.02 to 500 in steps of 0.01Characteristic angle: 60 to 90° in steps of 1Time delay: 0.000 to 65.535 s in steps of 0.001Timing accuracy: ±3% or 4 ms, whichever is greaterCurrent supervision:Level: neutral current (3I_0)Pickup: 0.050 to 30.000 pu in steps of 0.001Dropout: 97 to 98%Memory duration: 5 to 25 cycles in steps of 1Voltage supervision pickup (series compensation applications):0 to 5.000 pu in steps of 0.001Operation time: 1 to 1.5 cycles (typical)Reset time: 1 power cycle (typical)LINE PICKUPPhase instantaneous overcurrent: 0.000 to 30.000 puUndervoltage pickup: 0.000 to 3.000 puOvervoltage delay: 0.000 to 65.535 sNOTE
