7-4 Component Testing and Adjustment TP-5606 6/02
PowerBoostä IIIE
Voltage Regulator
The voltage regulator used on single-phase generator
models is the Powerboostä IIIE. The voltage regulator
monitors output voltage magnitude and frequency to
supply current to the generator exciter field. To test the
voltage regulator the following components will be
needed:
D Variable Transformer, 0--140 volts (0.5-amp
Minimum)
D 120-volt AC Plug
D 120-volt, 100-watt Lamp
D AC voltmeter
D #14 AWG Copper Wire (minimum)
Hazardous voltage.
Can cause severe injury or death.
Operate the generator set only when
all guards and electrical enclosures
areinplace.
Moving rotor.
WARNING
Short circuits. Hazardous voltage/current can cause
severe injury or death. Short circuits can cause bodily injury
and/or equipment damage. Do not contact electrical
connections with tools or jewelry while making adjustments or
repairs. Remove all jewelry before servicing the equipment.
Grounding electrical equipment. Hazardous voltage can
cause severe injury or death. Electrocution is possible
whenever electricity is present. Open the main circuit
breakers of all power sources before servicing the equipment.
Configure the installation to electrically ground the generator
set, transfer switch, and related equipment and electrical
circuits to comply with applicable codes and standards. Never
contact electrical leads or appliances when standing in water
or on wet ground because these conditions increase the risk of
electrocution.
Testing the voltage regulator. Hazardous voltage can
cause severe injury or death. High voltage is present at the
voltage regulator heat sink. To prevent electrical shock do not
touch the voltage regulator heat sink when testing the voltage
regulator.
(PowerBoostt, PowerBoostt III, and PowerBoostt V
voltage regulator models only)
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