Lucent Technologies 415B Battery Plant for 4ESS
7 - 6 Retrofit of 415A Battery Plant
Issue 6 September 1999
Battery Equalize/ Boost Feature
You will see the terms “Equalize” and “Boost” used throughout
the documentation associated with the 415B Battery Plant. In
this manual, the terms are interchangeable and mean exactly
the same thing.
The rectifiers, in association with the Galaxy Controller, allow
the batteries to be charged at a higher voltage (Boost) than float
voltage to Equalize the individual voltages of the cells in the
string. The Equalize/Boost Voltage is factory set to 2.23 volts
per cell, or 156.1 volts total.
Battery Strings, Enhanced Ground Current Monitor, and
Documentation References
See the System Description section for information about the
battery strings and the EGCM, as well as a list of documentation
that provides engineering, ordering, and installation information
for the 415B Battery Plant and its subsystems.
Power Distribution Frames (PDF)
If the PDFs are used to replace the distribution, refer to the
System Description section for information. The retrofit requires
use of the existing Area Bus Centers (ABC) Bays.
Group 3
(Configurations 1
and 2, Adding 1
or 2 Rectifiers)
The H569-429 Group 3 was developed for retrofitting or
increasing capacity with up to two J87132B-2 ferroresonant
rectifiers in parallel with a 415A module. The Group 3 contains
an alarm panel, 140/48-volt converter, and a Galaxy Controller.
The battery disconnect switches and the distribution panel are
not required with this application. The Group 3 provides alarms
and control for the 415B rectifier only. The alarms are paralleled
with the 415A Control and Distribution Bay. The Control and
Distribution Bay is installed next to the 415A lineup, and the
rectifier is connected to the Control and Distribution Bay using
Group 24 wireset. The Control and Distribution Bay is then
connected to the 415A distribution, with the positive connection
made to the unused fuse position or the fuse that is connected to
the failed 415A rectifier. The 415B rectifier has its own circuit
breaker, which requires the installer to replace the fuse in the
415A distribution with one of the supplied bus bars found in the
prepack hardware. All alarms from the 415B are wired in
parallel with the 415A alarms at TB4 of the 415A terminal block
