Metering - GE C70 Instruction Manual

Capacitor bank protection and control system
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CHAPTER 2: PRODUCT DESCRIPTION
Triggers:
Data storage:
USER-PROGRAMMABLE FAULT REPORT
Number of elements:
Pre-fault trigger:
Fault trigger:
Recorder quantities:
DATA LOGGER
Number of channels:
Parameters:
Sampling rate:
Trigger:
Mode:
Storage capacity:

2.5.4 Metering

RMS CURRENT: PHASE, NEUTRAL, AND GROUND
Accuracy at
0.1 to 2.0 × CT rating:
> 2.0 × CT rating:
RMS VOLTAGE
Accuracy:
REAL POWER (WATTS)
Accuracy at 0.1 to 1.5 x CT rating and 0.8 to 1.2 x VT rating:
REACTIVE POWER (VARS)
Accuracy at 0.1 to 1.5 x CT rating and 0.8 to 1.2 x VT rating:
APPARENT POWER (VA)
Accuracy at 0.1 to 1.5 x CT rating and 0.8 to 1.2 x VT rating:
CURRENT HARMONICS
Harmonics:
Accuracy:
HARMONICS:
THD:
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
any element pickup, dropout, or operate; contact input change of state; contact output change
of state; self-test events
in non-volatile memory
2
any FlexLogic operand
any FlexLogic operand
TM
32 (any FlexAnalog
value)
1 to 16
any available analog actual value
15 to 3600000 ms in steps of 1
any FlexLogic operand
continuous or triggered
(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
±0.25% of reading or ±0.1% of rated (whichever is greater)
±1.0% of reading
±0.5% of reading from 10 to 208 V
±1.0% of reading at –1.0 ≤ PF < –0.8 and 0.8 < PF ≤ 10
±1.0% of reading at –0.2 ≤ PF ≤ 0.2
±1.0% of reading
2nd to 25th harmonic: per phase, displayed as a % of f
THD: per phase, displayed as a % of f
1. f
> 0.4pu: (0.20% + 0.035% / harmonic) of reading or 0.15% of 100%, whichever is greater
1
2. f
< 0.4pu: as above plus %error of f
1
1. f
> 0.4pu: (0.25% + 0.035% / harmonic) of reading or 0.20% of 100%, whichever is greater
1
2. f
< 0.4pu: as above plus %error of f
1
(
fundamental frequency phasor)
1
1
1
1
SPECIFICATIONS
2
2-25

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