Reversing device for a two-pole single-phase synchronous motor

Details Reversing device for a two-pole single-phase synchronous motor Reversing device for a two-pole single-phase synchronous motor

1983-05-20

1984-12-04

Smith, Jr., David

Electricity: motive power systems

Synchronous motor systems

Braking

99501, H02P 318

Patent

active

044866976

ABSTRACT:
A reversing device for a two-pole single-phase synchronous motor (3) without a starting coil. The motor comprises a diametrically magnetized permanent-magnet rotor having a shaft that runs against elastic stops for reversing the direction of rotation, and a capacitor arranged in series with the stator exciter coil. The capacitor serves for improving the reversing operation and is dimensioned so that its reactance at the AC supply frequency is greater than the reactance of the exciter coil of the synchronous motor.

REFERENCES:
patent: 2105514 (1938-01-01), Welch
patent: 2613342 (1952-10-01), Thompson et al.
patent: 3548276 (1970-12-01), Gross
patent: 3667651 (1972-06-01), Shapiro

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