2-18 M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUALSPECIFICATIONS CHAPTER 2: PRODUCT DESCRIPTION2UNDERPOWEROperation: three-phase apparent powerNumber of elements: 2, alarm and trip stages in each elementPickup level: 0.05 to 2.00 pu in steps of 0.01Pickup level accuracy: ±1.0% of readingHysteresis: 3%Pickup delay: 0 to 600.00 s in steps of 0.01Timer accuracy: ±3% of operate time or ±10 ms, whichever is greaterOperate time: <35 ms at 60 HzUNDERCURRENTOperation: per-phase currentNumber of elements: one with 2 stages, alarm and tripPickup level: 0.10 to 0.95 FLA in steps of 0.01Pickup level accuracy: ±0.5% of reading or ±0.4% of rated (whichever is greater) at 0.1 to 2.0 CT rating; ±1.5% of read-ing at >2.0 CT ratingDropout level: 102 to 103% of pickupPickup delay: 0 to 600.00 s in steps of 0.01Timer accuracy: ±3% of operate time or ±10 ms, whichever is greaterPickup time: <55 ms at 60 HzSENSITIVE 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 0.01Timer accuracy: ±3% of operate time or ±1/4 cycle (whichever is greater)Operate time: <50 msPHASE UNDERVOLTAGEVoltage: Phasor onlyPickup 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 of 0.01Curve timing accuracy at <0.90 x pickup:±3.5% of operate time or ±1/2 cycle (whichever is greater) from pickup to operateAUXILIARY 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 TimeCurve multiplier: Time Dial = 0 to 600.00 in steps of 0.01Curve timing accuracy at <0.90 x pickup:±3.5% of operate time or ±1/2 cycle (whichever is greater) from pickup to operatePHASE 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 V
