GE Industrial Solutions GPS 4812_24 - Manual (Page 41)

Galaxy Power System 4812/24
Issue 9 Januray 2008 AC Input Panels 5 - 1
5 AC Input Panels
Overview
AC Service The ac input panel provides the facility to terminate 3-phase ac service
to the GPS 4812/24 system or to distribute individual 1-phase ac
supplies to each of the system rectifier positions. Depending upon the
option ordered, the panel will connect 3-wire (three phases), 4-wire
(three phases + neutral), or individual 2-wire (single phase, either 2 hot
leads or 1 hot lead and neutral) input ac service.
Some systems provide circuit breakers to protect the conductors
providing ac service to the individual rectifiers. Other systems contain a
terminal strip and the conductors are protected by circuit breakers
located in the building’s ac service panel.
Note: All wire sizes were based on the US National Electric Code.
Illustrations Circuit breaker panels are shown in Figures 5-1, and Figure 5-2 shows
terminal strip panels.