GE Industrial Solutions Galaxy Power Systems - Manual (Page 46)

Installation Guide for Galaxy Power Systems
4 - 6 System Electrical Architecture Overview Issue 12 August 2012
Centralized Architecture
The centralized architecture is best thought of as all the rectifiers and all
the batteries in the system connected together at a central point and then
taken from that central point to the distribution modules and then in turn
to the system loads. Since all the system power is brought together at a
central point, the central point must be sized for the ultimate capacity of
the system. Growth of the system is accomplished by adding rectifiers
(either to an existing cabinet or in a new cabinet), adding distribution
panels (either to an existing cabinet or in a new cabinet), and adding
batteries.
Figure 4-4 illustrates the centralized architecture.
Figure 4-4: Centralized Architecture
Charge Bus Charge Return Bus Discharge Return Bus
Battery Strings
Controller
Rectifier
Cabinet Rectifier
Only
Cabinet Rectifier
Only
Cabinet Distribution
Only
Cabinet
System
Shunt
Control
and
Monitor
To Loads
Cabinet
Ground
AC AC AC
Cabinet
Ground Cabinet
Ground Cabinet
Ground
System (CO)
Ground