Manual

Appendix A Parameters for Monitoring and Logging
188 EM920 Power Quality and Revenue Meter
Designation Description
V UNB%
Voltage unbalance
6
I UNB%
Current unbalance
6
V4x V4x neutral-ground voltage
Temp Internal temperature
RMS (0.2 sec) 0.2-Second RMS Values
V1
V1/V12 voltage
1
V2
V2/V23 voltage
1
V3
V3/V31 voltage
1
V12 V12 voltage
V23 V23 voltage
V31 V31 voltage
I1 I1 current
I2 I2 current
I3 I3 current
I4 I4 current
In In current
V ZERO-SEQ Zero-sequence voltage
I ZERO-SEQ Zero-sequence current
V UNB% Negative-sequence voltage unbalance
I UNB% Negative-sequence current unbalance
FREQ Frequency
V PSEQ Positive-sequence voltage
V ZSEQ UNB% Zero-sequence voltage unbalance
RMS (3 sec) 3-Second RMS Values
V1
V1/V12 voltage
1
V2
V2/V23 voltage
1
V3
V3/V31 voltage
1
V12 V12 voltage
V23 V23 voltage
V31 V31 voltage
I1 I1 current
I2 I2 current
I3 I3 current
I4 I4 current
In In current
V ZERO-SEQ Zero-sequence voltage
I ZERO-SEQ Zero-sequence current
V UNB% Negative-sequence voltage unbalance
I UNB% Negative-sequence current unbalance
FREQ
Frequency
5
V PSEQ Positive-sequence voltage
V ZSEQ UNB% Zero-sequence voltage unbalance
RMS (10 min) 10-Minute RMS Values
V1
V1/V12 voltage
1
V2
V2/V23 voltage
1
V3
V3/V31 voltage
1
V12 V12 voltage
V23 V23 voltage
V31 V31 voltage
I1 I1 current