Lucent Technologies Galaxy Power System 4804AP H569-450
11 - 10 Installation
Issue 1 June 2000
AC Connection and Wiring
Safety
Read Section 10, Safety, carefully before connecting ac to the Galaxy
Power System.
596 Rectifiers (48V,
50A)
The 596 rectifiers operate from 208/240Vac power at a frequency of
50/60 Hertz and produce dc output (596A, 48Vdc). The ac power is
phase-to-neutral, and shall be within the specified voltage range of the
rectifier.
The system supports two ac input schemes:
•
A single bulk 4-wire (3-phase + neutral) can be brought into the ac
panel located in the cabinet. The panel is factory equipped to have a
phase-to-neutral distribution to each rectifier through a single-pole
ac circuit breaker.
•
A single bulk 2-wire (phase-to-phase or phase-to-neutral) feed can
be brought into the ac panel located in the cabinet. The panel is
factory equipped to have a phase to neutral or phase to phase
distribution to each rectifier through a single-pole ac circuit
breaker.
Illustrations
Figure 11-5 illustrates a three phase + neutral AC panel
.
Figure 11-6 illustrates a single phase + neutral AC panel.
Figure 11-7 shows the rectifier positions and numbering scheme.
Table 11-D shows the lug requirement for the AC terminations.
AC Cable Routing
Caution: Follow all local codes and practices when perform-
ing the steps to connect ac to the power system.
AC Cable Routing
Step Action
1
Clearly label the main ac circuit breaker panel, stating that
installers are working in the ac cabling.
2
Check that all ac circuit breakers are turned OFF.
3
Route the ac cables to the cabinet as required by local building
codes.
4
At the cabinet, route the ac cables through the access hole(s) in
the top of the cabinet. The ac box extender can be used to create
more cabling space.
5
Install terminal lugs (if applicable) to cables.
