Capacitor-start parallel resonant motor

Details Capacitor-start parallel resonant motor Capacitor-start parallel resonant motor

1986-06-02

1987-06-23

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68E, 318786, 318793, 318794, H02K 1100, H02P 144

Patent

active

046755659

ABSTRACT:
An electric current motor is operated from a single phase of alternating current power source, and functions with low surge operation at motor start. The motor includes first and second windings of substantially the same wire size angularly displaced from one another 90.degree. electrical on a stator core and inductively coupled to a rotor. A capacitor is connected in parallel with one of the windings to form an LC resonant circuit at the operating frequency of the motor. A second starting capacitor is connected in series with a switch in parallel with the first capacitor. The switch is normally closed during starting of the motor and is opened during normal load conditions.

REFERENCES:
patent: 2028230 (1936-01-01), Lyden
patent: 2836780 (1958-05-01), List, Jr. et al.
patent: 3036255 (1962-05-01), Lewus
patent: 3573579 (1971-04-01), Lewus
patent: 3916274 (1975-10-01), Lewus

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