GE Industrial Solutions GPS 4848_100 Users Guide (dual rectifier shelf) - Manual (Page 25)

Galaxy Power System 4848/100 with Dual Rectifier Shelf
Issue 5 September 2011 System Description 2 - 5
Architecture, continued
Centralized Figure 2-4 shows GPS 4848/100 components configured in a
centralized architecture; Figure 2-5 provides a view of the centralized
architecture cabinets with and without controller.
Rectifiers, dc distribution panels, and batteries are cabled to external
busbars where a single system shunt is provided to measure total system
load current.
Rectifier cabinets contain ac distribution or ac terminal blocks,
rectifiers, and cable termination points.
DC distribution cabinets contain load protectors, load cable termination
points, and may include load disconnect/reconnect contactors.
The GPS 4848/100 controller may be provided in a dc distribution
cabinet or a rectifier cabinet equipped with ac circuit breakers. The
cabinet with the controller also contains termination points for the
system interconnect cables.
This architecture requires extensive up-front planning to determine the
ultimate system capacity and engineering to size the external busbars
appropriately; however, the system plan is not constrained to dedicated
layouts as required for distributed architecture systems.
Figure 2-4: Centralized Architecture
Charge Bus Charge Return Bus Discharge Return Bus
Battery Strings
Plant
Shunt
Control
and
Monitor
Loads