Apparatus for starting and running a plurality of three-phase motors from a single-phase power source
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United States of America Patent
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May 17, 1988
Grant Date -
N/A
app pub date -
Sep 22, 1986
filing date -
Sep 22, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for starting and running a plurality of three-phase motors from a single-phase power source is described. Two of the main coils of a three-phase motor are used to run the motor as a single-phase induction motor. The third coil of a three-phase motor is used as a starting coil and is selectively powered through a switch and a capacitor. The capacitor provides the necessary difference in the phase angle of the current in the starting coil and the main coils to provide starting torque for the operation of the motor.
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