Metering - GE C70 Instruction Manual
Capacitor bank protection and control system
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Also See for C70:
- Instruction manual (708 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (672 pages)
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SPECIFICATIONS
DATA LOGGER
Number of channels:
Parameters:
Sampling rate:
Trigger:
Mode:
Storage capacity:
2
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:
VOLTAGE HARMONICS
Harmonics:
Accuracy:
HARMONICS:
THD:
FREQUENCY
Accuracy at
V = 0.8 to 1.2 pu:
2-24
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
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
±0.01 Hz (when voltage signal is used for frequency measurement)
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
CHAPTER 2: PRODUCT DESCRIPTION
(
fundamental frequency phasor)
1
1
1
1
(
fundamental frequency phasor)
1
1
1
1
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