CHAPTER 2: PRODUCT DESCRIPTION SPECIFICATIONSG60 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2-312±1.0% of reading at –1.0 ≤ PF < –0.8 and 0.8 < PF ≤ 10REACTIVE POWER (VARS)Accuracy at 0.1 to 1.5 x CT rating and 0.8 to 1.2 x VT rating:±1.0% of reading at –0.2 ≤ PF ≤ 0.2APPARENT POWER (VA)Accuracy at 0.1 to 1.5 x CT rating and 0.8 to 1.2 x VT rating:±1.0% of readingWATT-HOURS (POSITIVE AND NEGATIVE)Accuracy: ±2.0% of readingRange: ±0 to 1 × 10 6 MWhParameters: three-phase onlyUpdate rate: 50 msVAR-HOURS (POSITIVE AND NEGATIVE)Accuracy: ±2.0% of readingRange: ±0 to 1 × 10 6 MvarhParameters: three-phase onlyUpdate rate: 50 msCURRENT HARMONICSHarmonics: 2nd to 25th harmonic: per phase, displayed as a % of f1 ( fundamental frequency phasor)THD: per phase, displayed as a % of f1Accuracy:HARMONICS: 1. f 1 > 0.4pu: (0.20% + 0.035% / harmonic) of reading or 0.15% of 100%, whichever is greater2. f 1 < 0.4pu: as above plus %error of f 1THD: 1. f 1 > 0.4pu: (0.25% + 0.035% / harmonic) of reading or 0.20% of 100%, whichever is greater2. f 1 < 0.4pu: as above plus %error of f 1VOLTAGE HARMONICSHarmonics: 2nd to 25th harmonic: per phase, displayed as a % of f1 ( fundamental frequency phasor)THD: per phase, displayed as a % of f1Accuracy:HARMONICS: 1. f 1 > 0.4pu: (0.20% + 0.035% / harmonic) of reading or 0.15% of 100%, whichever is greater2. f 1 < 0.4pu: as above plus %error of f 1THD: 1. f 1 > 0.4pu: (0.25% + 0.035% / harmonic) of reading or 0.20% of 100%, whichever is greater2. f 1 < 0.4pu: as above plus %error of f 1FREQUENCYAccuracy atV = 0.8 to 1.2 pu: ±0.001 Hz (when voltage signal is used for frequency measurement)I = 0.1 to 0.25 pu: ±0.005 HzI > 0.25 pu: ±0.02 Hz (when current signal is used for frequency measurement)DEMANDMeasurements: Phases A, B, and C present and maximum measured currents3-Phase Power (P, Q, and S) present and maximum measured currentsAccuracy: ±2.0%2.5.5 InputsAC CURRENTCT rated primary: 1 to 50000 ACT rated secondary: 1 A or 5 A by connectionRelay burden: < 0.2 VA at rated secondaryConversion range:
