Generator Voltage Sensing; Generator Current Sensing - Allen-Bradley 1407-CGCM-DLR User Manual

Appendix D Specifications
210

Generator Voltage Sensing

Phase Wiring
Configurations
Single-phase V Gen A and
V Gen C
Three-phase Floating Wye
Three-phase Grounded Wye
(grounded neutral)
Three-phase Open delta, grounded
B phase
IMPORTANT Voltage sensing burden is < 1VA per phase.
For all wiring configurations, the minimum voltage sensing threshold is
TIP
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
Generator Voltage Sensing

Generator Current Sensing

Attribute
Type
Frequency
Range
Burden
Cross-current compensation entity parameters
ID(+) 1 A
ID(+) 5 A
ID(-)
Rockwell Automation Publication 1407-UM002B-EN-P - February 2019
Grounded Voltage Range for
Connection Specified
Available Accuracy
No Min 57 Vrms
Max 150 Vrms
No Min 99 Vrms L-L
Max 208 Vrms L-L
Yes Min 99 Vrms L-L
Max 208 Vrms L-L
Yes Min 99 Vrms L-L
Max 208 Vrms L-L
table for the specified wiring configuration.
Value
3-phase plus cross current compensation input.
50/60 Hz
1 A or 5 A max continuous
< 0.1VA per phase for metering CTs
< 2.5VA per phase for cross-current inputs
Ui = 12V
Ci = 14.1 nF
Ii = 5 AAC
Li = 1.5 µH
Frequency Range
for Specified
Accuracy
Min 20 Hz
Max 90 Hz
Min 20 Hz
Max 90 Hz
Min 20 Hz
Max 90 Hz
Min 20 Hz
Max 90 Hz