210
Rockwell Automation Publication 1407-UM002B-EN-P - February 2019
Appendix D
Specifications
Generator Voltage Sensing
Generator Current Sensing
Phase
Wiring
Configurations
Grounded
Connection
Available
Voltage Range for
Specified
Accuracy
Frequency Range
for Specified
Accuracy
Single-phase
V Gen A and
V Gen C
No
Min 57 Vrms
Max 150 Vrms
Min 20 Hz
Max 90 Hz
Three-phase
Floating Wye
No
Min 99 Vrms L-L
Max 208 Vrms L-L
Min 20 Hz
Max 90 Hz
Three-phase
Grounded Wye
(grounded neutral)
Yes
Min 99 Vrms L-L
Max 208 Vrms L-L
Min 20 Hz
Max 90 Hz
Three-phase
Open delta, grounded
B phase
Yes
Min 99 Vrms L-L
Max 208 Vrms L-L
Min 20 Hz
Max 90 Hz
IMPORTANT
Voltage sensing burden is < 1VA per phase.
TIP
For all wiring configurations, the minimum voltage sensing threshold is
2V AC typical. Maximum voltage withstand limit is 360V AC. These limits
are provided for reference only. Metering accuracy applies only when
operating in the range that is specified for voltage and frequency in
table for the specified wiring configuration.
Attribute
Value
Type
3-phase plus cross current compensation input.
Frequency
50/60 Hz
Range
1 A or 5 A max continuous
Burden
< 0.1VA per phase for metering CTs
< 2.5VA per phase for cross-current inputs
Cross-current compensation entity parameters
ID(+) 1 A
ID(+) 5 A
ID(-)
Ui = 12V
Ci = 14.1 nF
Ii = 5 AAC
Li = 1.5 µH