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Excitation power – Rockwell Automation 1407-CGCM Combination Generator Control Module User Manual

Page 17

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Rockwell Automation Publication 1407-UM001G-EN-P - April 2013

17

Installation Chapter 2

Excitation Power

Excitation power is wired to the PMG terminals, whether connected to the
generator output (Shunt Excited) or to a PMG. Connect shunt excited inputs
with a voltage transformer (VT).

PMG inputs are on TB1 and are labeled PMG A, PMG B, and PMG C,
illustrating their respective phase relationships. Single-phase excitation power
must be connected to terminals PMG A and PMG C. Twisted, shielded cabling is
required for the PMG inputs.

Refer to the wiring diagrams below.

Figure 2 - Excitation Power Connections, 3-phase PMG

Figure 3 - Excitation Power Connections, Single-phase PMG

Figure 4 - Excitation Power Connections, Single-phase Shunt

TB1

PM G A

PMG B

PMG C

SHL D 1

SHL D 1

PMG

TB1

PMG A

PMG B

PM G C

SHLD 1

SHLD 1

PMG

TB1

PMG A

PMG B

PM G C

SHLD 1

SHLD 1

Fuse

G

A

C

B