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Chapter 3
CGCM-DLR Unit Operation
Table 3 - Metered Parameter Accuracy
Metered Parameter
Gen Voltages, 3, L-L
Gen Voltage, avg, L-L
Gen Voltages, 3, L-N
Gen Voltage, avg, L-N
Gen Currents, 3
Gen Current, avg
Gen Kilowatts, 3
Gen Kilowatts, total
Gen kVA, 3
Gen kVA, total
Gen kVAR, 3
Gen kVAR, total
Gen Power Factor, 3
Gen Power Factor, avg
Gen Frequency
Excitation Current
Gen Kilowatt Hours
Gen kVAR Hours
Gen kVA Hours
Diode Ripple Level
Load Share Error
Voltage Match Error
Sync Phase Error
Sync Frequency Error
Bus Voltages, 3, L-L
Bus Voltage, avg, L-L
Bus Voltages, 3, L-N
Bus Voltage, avg, L-N
Bus A Frequency
Bus B Frequency
Gen Phase Rotation
Bus Phase Rotation
(1) Results updated only while Synchronization is active (tag InitiateSync = 1).
70
Metered Parameters
The CGCM-DLR unit provides the following metered parameters. The
collection of metering data is dependent on the metering wiring mode that is
selected, for example, single-phase, open-delta, four-wire wye, and three-wire
wye.
Metering Wiring Mode
Single-phase
Delta
CA
AB, BC, CA
Yes (=CA)
Yes
N/A
N/A
N/A
N/A
A, B, C
A, B, C
Yes
Yes
N/A
N/A
Yes
Yes
N/A
N/A
Yes
Yes
N/A
N/A
Yes
Yes
N/A
N/A
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(1)
(1)
(1)
(1)
(1)
(1)
CA
AB, BC, CA
Yes (=CA)
Yes
N/A
N/A
N/A
N/A
Yes
Yes
N/A
N/A
N/A
Yes
N/A
Yes
Rockwell Automation Publication 1407-UM002B-EN-P - February 2019
Three-wire Wye
Four-wire Wye
AB, BC, CA
AB, BC, CA
Yes
Yes
N/A
A, B, C
N/A
Yes
A, B, C
A, B, C
Yes
Yes
N/A
A, B, C
Yes
Yes
N/A
A, B, C
Yes
Yes
N/A
A, B, C
Yes
Yes
N/A
A, B, C
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(1)
(1)
(1)
(1)
(1)
(1)
AB, BC, CA
AB, BC, CA
Yes
Yes
N/A
A, B, C
N/A
Yes
Yes
Yes
N/A
N/A
Yes
Yes
Yes
Yes
Dual-bus
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
(1)
(1)
(1)
N/A
Yes
N/A
N/A
Yes
Yes
Yes
N/A
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