Rockwell Automation 1407-CGCM Combination Generator Control Module - Manual (Page 25)

Rockwell Automation Publication 1407-UM001G-EN-P - April 2013 25
Installation Chapter 2
Figure 12 - Voltage and Current Connection for Two (or three) Transformer Delta
Bus and Four-wire Wye Generator System
L1 L2 L3
G
CB
A C
B
Fuse
Fuse
Fuse
Fuse
Fuse
Fuse
N
TB3
I1 (+) 5 A
I1 (- )
ID (+) 5A
I3 (+) 5 A
I2 (+) 5 A
I3 (- )
ID (- )
I1 (+) 1 A
I2 (+) 1 A
I3 (+) 1 A
ID (+) 1A
TB 6
VBus A
VB
us B
VBus C
VBus N
TB 5
V Gen A
VGen B
V Gen C
V Gen N
I2 (- )
Optional
Ground
To optional cross-current
reactive compensation loop.
Customer Supplied CT
Shorting Switch or Test
Block
Cross-current CT input
not required for parallel
droop operation.
Use of a third potential
transformer is optional. The
CGCM unit can be connected
in either open or closed delta.