GE N60 Instruction Manual

Also see for N60: Communications manual Communications guide Instruction manual Instruction manual Instruction manual

Contents

GE Multilin N60 Network Stability and Synchrophasor Measurement System 2-72 PRODUCT DESCRIPTION 2.2 SPECIFICATIONS22.2SPECIFICATIONSSPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE2.2.1 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. This should be taken into account when usingFlexLogic™ to interconnect with other protection or control elements of the relay, building FlexLogic™ equations, orinterfacing with other IEDs or power system devices via communications or different output contacts.PHASE IOCPickup 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 reading or ±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: <16 ms at 3 × pickup at 60 Hz(Phase/Ground IOC)<20 ms at 3 × pickup at 60 Hz(Neutral IOC)Timing accuracy: Operate at 1.5 × pickup±3% or ±4 ms (whichever is greater)SENSITIVE DIRECTIONAL POWERMeasured power: 3-phase, true RMSNumber of stages: 2Characteristic angle: 0 to 359° in steps of 1Calibration angle: 0.00 to 0.95° in steps of 0.05Minimum power: –1.200 to 1.200 pu in steps of 0.001Pickup level accuracy: ±1% or ±0.001 pu, whichever is greaterHysteresis: 2% or 0.001 pu, whichever is greaterPickup delay: 0 to 600.00 s in steps of 0.01Time accuracy: ±3% or ±4 ms, whichever is greaterOperate time: 50 msPHASE UNDERVOLTAGEPickup level: 0.000 to 3.000 pu in steps of 0.001Dropout level: 102 to 103% of pickupLevel accuracy: ±0.5% of reading from 10 to 208 VCurve shapes: GE IAV Inverse;Definite Time (0.1s base curve)Curve multiplier: Time dial = 0.00 to 600.00 in steps of0.01Timing accuracy: Operate at < 0.90 × pickup±3.5% of operate time or ±4 ms (which-ever is greater)PHASE OVERVOLTAGEVoltage: Phasor onlyPickup level: 0.000 to 3.000 pu in steps of 0.001Dropout level: 97 to 98% of pickupLevel accuracy: ±0.5% of reading from 10 to 208 VPickup delay: 0.00 to 600.00 in steps of 0.01 sOperate time: < 30 ms at 1.10 × pickup at 60 HzTiming accuracy: ±3% or ±4 ms (whichever is greater)UNDERFREQUENCYMinimum 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 changeTypical times are average operate times including variables suchas frequency change instance, test method, etc., and may vary by±0.5 cycles.OVERFREQUENCYPickup 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 changeTypical times are average operate times including variables suchas frequency change instance, test method, etc., and may vary by±0.5 cycles.RATE 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: 80 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: typically 6.5 cycles at 2 × pickuptypically 5.5 cycles at 3 × pickuptypically 4.5 cycles at 5 × pickupTypical times are average operate times including variables suchas frequency change instance, test method, etc., and may vary by±0.5 cycles.NOTE