Simplex, Inc., 5300 Rising Moon Road, Spring
fi
eld, IL 62711-6228 • 217-483-1600 • Fax 217-483-1616
Lbdman8p.indd (04/11) • © 2011 Simplex, Inc. All Rights Reserved. • Printed in the USA. • www.simplexdirect.com
LOAD BANK MANUAL • LBD Series • page 2 of 16
DESCRIPTION
Simplex LBD Series Load Banks are
a special form of stationary, resistive,
forced air-cooled Load Bank which
utilizes the air out
fl
ow of an engine
radiator for cooling of the load ele-
ments. They are speci
fi
cally designed
to apply discrete, selectable electrical
load to a power source while measur-
ing the response of the generator to
the applied load. They also provide
a means for routine maintenance
exercise to assure long term reliability
and readiness of the standby genera-
tor. Exercise Load Banks eliminate
the detrimental effects of unloaded
operation of diesel engine generators.
Simplex LBD Series Load Banks are
intended for use with water cooled
engine generator sets equipped
with unit mounted radiators. These
Load Banks are built per customer
speci
fi
cations and can be installed
in numerous ways, including direct
bolted attachment to the radiator,
mounting within an air duct, wall
mounting over the air out
fl
ow open-
ing, indoors or outdoors.
Power source testing is accom-
plished by applying resistive load
steps at unity (1.0) power factor.
See the Load Bank Speci
fi
cations
Sheet in the front of this manual for
the rating of your Load Bank.
Load application is by magnetic
contactor. All load branch circuits
are protected by 200,000AIC class-
T fuses.
The Control Panel contains the fol-
lowing controls and indicator lamps:
1. Over Temperature and Normal
Operation lamps,
2. Control Power switch and/or
pushbutton and
Part of Typical Pictorial Drawing
3. Master Load and load step switch-
es.
