Architecture - ABB GPS2436 User Manual

Components
AC Input connects the commercial and/or standby ac power sources to the rectifiers within the system
and provides overcurrent protection. In some applications the ac service is wired directly to the
rectifiers and overcurrent protection is provided at the service panel.
Rectifiers convert an ac source voltage into the dc voltage level required to charge and float the
batteries and to power the using equipment.
Controller provides the local and remote control, monitoring, and diagnostic functions required to
administer the power system.
Batteries provide energy storage for an uninterrupted power feed to the using equipment during loss
of ac input or rectifier failure.
DC Distribution Panel provides overcurrent protection, connection points for the using equipment, and
bus bars used to interconnect the rectifiers, batteries, and dc distribution.
Battery Connection Panel provides connection points for the battery strings through battery
disconnect fuses or contactors and current monitoring shunts.

Architecture

Configurations
The GPS2436 is a 7-foot cabinet that can provide up to 3600 amps of DC power in a single cabinet.
Figures 2-1 and 2-2 show diagrams of single cabinets.
Each cabinet contains ac distribution, dc distribution panels, a battery connection panel, rectifiers,
termination points for load circuits, and a system controller.
Illustrations
Figure 2-3 shows a block diagram of a two cabinet system. One supplemental cabinet may be added to
grow the system to 2,700 amperes. The rectifier output buses are interconnected to permit the cabinet
to share current and ensure common voltage references for all system rectifiers.
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Figure 2-2 Cabinet schematic
GPS2436_MAN Rev. 1.3