Power dissipation regulating circuit for induction motor by supp

Details Power dissipation regulating circuit for induction motor by supp Power dissipation regulating circuit for induction motor by supp

1980-10-17

1981-11-03

Beha, Jr., William H.

Electricity: motive power systems

Induction motor systems

Power-factor control

318806, H02P 762

Patent

active

042988349

ABSTRACT:
An energy-saving device in the controlof an induction motor which keeps the power factor to a desirable value, regardless of load and line voltage variations, by switching off the voltage applied to the motor during each cycle for a period of time in response to the phase lag between current and voltage. An automatic timing circuit provides for the application of maximum power during motor starting and quick response upon sudden changes in load conditions.

REFERENCES:
patent: 3246247 (1966-04-01), Grindle
patent: 3443188 (1969-05-01), Mortimer
patent: 4052648 (1977-10-01), Nola
patent: 4266177 (1981-05-01), Nola
patent: 4271386 (1981-06-01), Lee
NASA Study, "Power Factor Controller", Brief No. MFS-23280, Apr. 2, 1979.

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