CET PMC-690, User Manual

Page: 101 / 103

CET Electric Technology
101
Appendix D - Accuracy Specifications
Parameters Accuracy Resolution
Voltage ±0.1% 0.01V
Current ±0.1% + CT Clamps Accuracy 0.001A
kW, kVA ±0.2% + CT Clamps Accuracy 0.001kX
kWh, kVAh IEC 62053-22 Class 0.5S 0.1kXh
kvar ±0.2% + CT Clamps Accuracy 0.001kvar
kvarh IEC 62053-23 Class 2 0.1kvarh
P.F. ±0.5% 0.001
Frequency ±0.005 Hz 0.001Hz
Harmonics IEC 61000-4-7 Class A 0.01%
K-Factor IEC 61000-4-7 Class A 0.01
Phase angles ±2° 0.1°
Voltage Deviation ±0.1% 0.01%
Voltage Unbalance ±0.1% 0.01%
Current Unbalance ±0.5% 0.01%
Pst, Plt ±5% 0.001