
70 SEBU8219-01
Operation Section
Setup Procedures
Multiple Units
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Illustratio
n62
Many electric power generation applications require
several powe
r modules to be operated. When you
select a site, recommended spacing should be
observed. There should be a minimum spacing of
6m(20ft)fo
r less than five power modules that
are placed beside each other. There should be
a minimum spacing of 8 m (25 ft) for more than
five power m
odules that are placed beside each
other. This space between the power modules will
allow fresh air to enter the air inlet openings. The
power modu
les should be oriented so the radiator
cooling airflow and engine exhaust will flow with the
prevailing wind direction in order to prevent engine
exhaust f
rom recirculating into the power module.
g00769042
Illustration 63
The outlet of the cooling fan should be positioned in
opposite directions if the power modules are placed
behind each other. The radiator cooling airflow and
engine exhaust from one power module should be
directed away from the air inlet of another power
module. To prevent recirculation of cooling air and
exhaust, the minimum spacing between power
modulesis15m(50ft).
Power Module Ground
The Power Module must be properly grounded to
prevent accidental injury or death from electrocu-
tion.
The switchgear
in the power module controls the
connection of the generator set to the electric system.
The generator frame is grounded to the frame of the
floor-standin
g switchgear. The switchgear must be
connected to an earth ground at the site while
the power module is operated. This consists of a
ground strap
from the ground bar at the switchgear to
a ground stake. Consult local wiring codes in order to
find the correct cable size and stake material for the
appropriat
e electric load.
When several generators are operating in parallel,
connecting
all neutral bus bars can result in current
circulating through the neutral connections. See this
Operation and Maintenance Manual, “Generator
Lead Connec
tions” for further information.
Ladders
The power module is equipped with ladders for
easier acc
ess into the doors. The ladders should be
installed once the power module is parked.
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57
Illustration 64
(1) Installed ladder
The ladde
rs for the power module are stored inside
the storage boxes. Install the ladders on each door.
The ladders are attached at the bottom of each door
opening
.
There may also be hooks for the ladders on both
sides of
the power module for the access doors for
the air cleaners, and on the rear to access to the
makeup oil tank.