Phase converter controlled by D-C power

Details Phase converter controlled by D-C power Phase converter controlled by D-C power

1981-02-09

1982-09-21

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Primary circuit control

318781, 318790, H02P 144

Patent

active

043509452

ABSTRACT:
The control relay of a phase converter for converting a three phase motor to one phase operation is operated by D-C power in order to prevent voltage fluctuations on single phase power lines from causing the starting capacitors or the motor from being destroyed. The D-C power is obtained from a rectifier having its input coupled to the secondary of a transformer. The primary of the transformer is adapted to be coupled to the windings of the motor.
The phase converter is adapted to be used with a 230 volt or 460 volt motor.

REFERENCES:
patent: 2589278 (1952-03-01), Noodleman

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