GE C70

CHAPTER 2: PRODUCT DESCRIPTION SPECIFICATIONS
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL 2-25
2
Triggers: any element pickup, dropout, or operate; contact input change of state; contact output change
of state; self-test events
Data storage: in non-volatile memory
USER-PROGRAMMABLE FAULT REPORT
Number of elements: 2
Pre-fault trigger: any FlexLogic operand
Fault trigger: any FlexLogic operand
Recorder quantities: 32 (any FlexAnalog
TM
value)
DATA LOGGER
Number of channels: 1 to 16
Parameters: any available analog actual value
Sampling rate: 15 to 3600000 ms in steps of 1
Trigger: any FlexLogic operand
Mode: continuous or triggered
Storage capacity: (NN is dependent on memory)
1-second rate:
01 channel for NN days
16 channels for NN days
↓
60-minute rate:
01 channel for NN days
16 channels for NN days
2.5.4 Metering
RMS CURRENT: PHASE, NEUTRAL, AND GROUND
Accuracy at
0.1 to 2.0 × CT rating: ±0.25% of reading or ±0.1% of rated (whichever is greater)
> 2.0 × CT rating: ±1.0% of reading
RMS VOLTAGE
Accuracy: ±0.5% of reading from 10 to 208 V
REAL POWER (WATTS)
Accuracy at 0.1 to 1.5 x CT rating and 0.8 to 1.2 x VT rating:
±1.0% of reading at –1.0 ≤ PF < –0.8 and 0.8 < PF ≤ 10
REACTIVE 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 ≤ 0.2
APPARENT POWER (VA)
Accuracy at 0.1 to 1.5 x CT rating and 0.8 to 1.2 x VT rating:
±1.0% of reading
CURRENT HARMONICS
Harmonics: 2nd to 25th harmonic: per phase, displayed as a % of f
1
(fundamental frequency phasor)
THD: per phase, displayed as a % of f
1
Accuracy:
HARMONICS: 1. f
1
> 0.4pu: (0.20% + 0.035% / harmonic) of reading or 0.15% of 100%, whichever is greater
2. f
1
< 0.4pu: as above plus %error of f
1
THD: 1. f
1
> 0.4pu: (0.25% + 0.035% / harmonic) of reading or 0.20% of 100%, whichever is greater
2. f
1
< 0.4pu: as above plus %error of f
1