Series resonant capacitor motor

Details Series resonant capacitor motor Series resonant capacitor motor

1988-01-15

1988-12-27

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68B, 318794, 318795, 318739, H02K 1100, H02P 144

Patent

active

047942886

ABSTRACT:
A series resonant capacitor motor is operated from a source of single phase alternating current power, and the start and run windings are wound on the stator electrically angularly displaced from one another by 90.degree.. The run winding is of heavy wire, and it is connected in series with a capacitor having a high capacitance to the source of alternating current power. The start winding is connected in parallel with the series connected run winding and capacitor. During the full load and no load running conditions of operation of the motor, substantially all of the current passes through the run winding and capacitor with little or no current flowing through the start winding. The motor exhibits improved starting torque, and an additional switched starting capacitor can be connected in parallel with the series resonant capacitor to produce high starting torque.

REFERENCES:
patent: 3036255 (1962-05-01), Lewus
patent: 3573579 (1971-04-01), Lewus
patent: 3916274 (1975-10-01), Lewus
patent: 4675565 (1987-06-01), Lewus

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