Chapter 1
Turbine Package System Overview
1-38
Batteries & Battery Charging System
The DC supply is provided by 24 volt batteries and a battery charger. The supply is directed
through a DC distribution plate to the package systems.
The battery system is designed to have the capacity to run the DC motor driven emergency
lubricating oil pump for three hours in the case of a mains failure.
Battery Charger & System Controller
The battery charger is housed in a freestanding steel enclosure, which also contains the
batteries, DC-DC converters, and a system controller. The system controller allows the user to
configure, monitor and control the entire DC power system from a touch screen display. In
addition to local indicators and alarms, the system controller also has Ethernet communication
capabilities.
24 Volt Batteries
24 volt NiCad battery, plastic cased, consisting of 20 cells having a nominal capacity of 550Ah.
The cells are designed for optimal operating in an ambient of 25ºC.
The cells are mounted on a battery rack.
24 Volt DC Battery Charger
The 24 volt battery charger is housed in a freestanding steel cubicle.
The equipment comprises a 24V 3k1W Rectifier module, a CXCR Controller, 24V battery and
associated protective devices. The rectifier will support any standby load and recharge the
associated battery.
Local indicators and alarms provide indication of voltage/current, charge/charge failure, and
mains supply.
Contacts are also included to provide remote indication of mains and charger failure.
For more specific details of the Batteries and Battery Charger refer to the Alpha-Argus literature
contained in the Vendor Information Manual.
