Rockwell Automation 1407-CGCM Combination Generator Control Module User Manual
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Rockwell Automation Publication 1407-UM001G-EN-P - April 2013
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Installation Chapter 2
Generator Current Sensing
CGCM units provide 3-phase AC current sensing with provisions for 1 A and 5
A nominal sensing ranges. The inputs for 3-phase current sensing are on TB3.
The ID (+) and ID (-) terminals are used for systems connected in a cross-current
compensation system.
Voltage and Current Sensing Connection Examples
The following examples depict typical connections of voltage (also called
potential) transformer (VTs) and current transformers (CTs) to the CGCM unit
for various bus and generator power system configurations. These diagrams do
not show all connections to the CGCM unit, nor are they intended to show all
possible wiring combinations. For assistance in wiring a CGCM unit in a power
system configuration not shown below, please contact Rockwell Automation.