Entec EVRC2A-N6-NT - 2.3. Metering Accuracy

RECLOSER CONTROL EVRC2A-N6,NT http://www.entecene.co.kr
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ENHANCED TECHNOLOGY
2.3. Metering Accuracy
The harmonic components of current and voltage are removed from the input voltage and current
parameters, so all measurements based on these quantities respond to the fundamental
components only except the measurement of harmonics.
Table 2-1. Metering Accuracy(1/2)
Measurements Parameters Unit Accuracy Range
CURRENT
Phase A RMS Current
Phase B RMS Current
Phase C RMS Current
Phase G RMS Current
Phase SEF RMS Current
A
±1% of 2×CT 20×CT
VOLTAGE
A–N (A–B) RMS Voltage
B–N (B–C) RMS Voltage
C–N (C–A) RMS Voltage
R–N (R–S) RMS Voltage
S–N (S–T) RMS Voltage*
T–N (T–R) RMS Voltage*
㎸ ±1%
–
SYMMETRICAL
COMPONENTS
I1, I2, 3I0
V1, V2, 3V0
A
㎸
±1% of 2×CT
±1%
–
POWER FACTOR
Phase A, B, C
3Φ Phase
Rate
±0.02
–1.000 to 1.000
3ΦREAL POWER
Phase A, B, C
3Φ Phase
MW
±2%
–32.000 to 32.000
3ΦREACTIVE
POWER
Phase A, B, C
3Φ Phase
MVar
±2%
–32.000 to 32.000
3ΦAPPARENT
POWER
Phase A, B, C
3Φ Phase
MVA
±2%
–32.000 to 32.000
WATT-HOURS
Phase A, B, C
3Φ Phase
MWH
±2%
–32000 to 32000
VAR-HOURS
Phase A, B, C
3Φ Phase
MVarH
±2%
–32000 to 32000
DEMAND
Phase A/B/C/RG Current
A/B/C, 3Φ Real Power
A/B/C, 3Φ Reactive Power
A
MW
MVar
±2%
±2%
±2%
–