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 TM 55-1905-223-24-3
(c) The manual voltage regulator is an electronic control unit designed for use in conjunction with the ac
generators. It provides linear manual control of the excitation field current independent of load, output voltage,
or speed fluctuations. The unit is interlinked with the permanent magnet generator, the machine exciter field,
and an automatic voltage regulator, to provide three operating conditions, depending upon the position of the
selector toggle switch. The manual regulator is located on the control panel, remote from the generator.
1 MANUAL. The generator exciter current is under the control of the excitation control knob and is
independent of machine voltage, load current, or shaft speed.
WARNING
Be careful when adjusting the generator loading. Do not produce a dangerous over-voltage condition.
2
OFF. The generator runs unexcited.
3
AUTO. The generator is under the complete control of the automatic voltage regulator.
WARNING
With the switch in the OFF position, neither the automatic voltage regulator nor the
generator is completely electrically isolated.
(2) Electric Fuel Control Governor. For the technical operation of the governor and magnetic pickup, refer
to paragraph b, Fuel System.
NOTE
For maintenance procedures on remote mounted components, refer to TM 55-1905-223-24-18.
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