Polyphase electric motor having controlled magnetic flux density

Details Polyphase electric motor having controlled magnetic flux density Polyphase electric motor having controlled magnetic flux density

1977-04-25

1980-02-05

Rubinson, Gene Z.

Electricity: motive power systems

Induction motor systems

Power-factor control

318812, H02F 144

Patent

active

041874579

ABSTRACT:
A polyphase motor is disclosed in which each coil of the stator winding of, for example, a squirrel cage induction motor, is connected in series with a capacitor so that the capacitor, together with the input voltage, causes the stator core to periodically switch from a nonsaturated to a saturated condition and vice-versa so that the flux density is maintained at a uniform high level. A second set of stator coils may be provided which serves to provide increased starting torque and improve the overall operating characteristics of the motor.

REFERENCES:
patent: 1478012 (1923-12-01), Varley
patent: 1595937 (1926-08-01), Hobart
patent: 1978581 (1934-10-01), Johnson
patent: 2039050 (1936-04-01), Ball

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