Multi-Function Control ETMFC610
http://www.entecene.co.kr
11
EN
HANCED
TEC
HNOLOGY
2.3. Metering Accuracy
The quantity of electricity used in metering and protection is based on fundamental content which
harmonic is removed in input voltage and current parameters.
VOLTAGE METERING
Rated voltage : AC effective value voltage 4 V
Phase A, B, C : ±0.5%( 50 ~ 200% of rated voltage), ±0.5˚
V1, V2, 3V0 : ±0.6 %( 50 ~ 200% of rated voltage), ±1˚
CURRENT METERING
Rated current : AC 0.6 Arms
IA, IB, IC, IN :
±
0.5 mA
±
0.5 % of reading(0.03~1.5 A), ±0.5˚
ISEF :
±
0.005 mA +
±
0.5 % of reading(0.5~16.0 mA), ±1˚
I1, I2, 3I0 :
±
0.01 A ± 3 % of reading(0.003~1.5A ), ±1˚
POWER METERING
Apparent Power :
±
1.2 %( Rated Voltage >80 %, Rated Current >0.03)
Active Power :
±
0.7 % PF=1,
±
1% PF>0.87(Rated Voltage >80%, Rated Current >0.03)
Reactive Power :
±
0.7 % PF=0,
±
1% PF<0.5(Rated Voltage >80%, Rated Current >0.03)
FREQUENCY METERING
Source/Load Voltage Frequency :
±
0.01 Hz
HARMONIC METERING
±
5%
The above measurement accuracy is applied only for ETMFC610 controller. The measurement
accuracy of voltage and current including thank is about
±
1 %.