Rockwell Automation 1407-CGCM Combination Generator Control Module - Manual (Page 34)

34 Rockwell Automation Publication 1407-UM001G-EN-P - April 2013
Chapter 2 Installation
Figure 24 - Cross-current (reactive differential) Compensation Connection
Diagram
Figure 25 - Typical Cross-current CT Locations and Polarity
ID (+ ) 5A
ID (-)
ID (+ ) 1A
L 1 L2 L3
G
G2
A C
B
L1 L2 L3
L1 L2 L3
G
G3
A C
B
G
G1
A C
B
TB 3
ID (+ ) 5 A
ID ( -)
ID (+ ) 1 A
TB 3
ID (+ ) 5 A
ID ( -)
ID (+ ) 1 A
TB 3
Ground
cross-current loop
at only one point
(optional).
Customer
Supplied CT
Shorting Switch
or Test Block
(typical)
Cross-
current CT
(typical)
L1 L2 L3
G
A C
B
X Z
Y
L1 L2 L3
G
A
C
B
X
Z
Y
ABC Generator ACB Generator
Cross-
current CT
(typical)