Rockwell Automation Publication 1407-UM002B-EN-P - February 2019
27
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
Fu se
Fu se
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
VB us A
VB
us B
VB us C
VB us N
TB 5
V Gen A
VGe n 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.