Lucent Technologies Galaxy Power System 4848/100
Issue 5  June 2000  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 initial and growth cabinets. Rectifiers, dc distribution 
panels, and batteries are cabled to external busbars where a single 
system shunt is provided to measure total system current. The initial 
cabinet contains ac distribution, rectifiers, the controller, and 
termination points for the system interconnect cables. Growth cabinets 
contain ac distribution, rectifiers, and cable termination points. A 
separate cabinet provides load distribution and protection facilities and 
may include a load disconnect/reconnect feature.
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