Allen-Bradley 1407-CGCM, User Manual, Page: 21 / 252

Rockwell Automation Publication 1407-UM001H-EN-P - November 2014
Installation #HAPTER
'ENERATOR#URRENT3ENSING
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.
6OLTAGEAND#URRENT3ENSING#ONNECTION%XAMPLES
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.