Control system for pole-changing-motor-driven compressor

Details Control system for pole-changing-motor-driven compressor Control system for pole-changing-motor-driven compressor

1976-04-12

1977-12-20

Hohauser, Herman J.

Electricity: motive power systems

Motor-reversing

Armature or primary circuit control

318221R, 318481, H02P 144

Patent

active

040644200

ABSTRACT:
A control system for a compressor driven by a pole-changing motor comprises a pole changer for the motor, a contactor for stopping the motor for a predetermined time in case of the pole changing, and a switch responsive to the variation in a physical quantity which occurs in the compressor every time when the latter is stopped, whereby the motor is stopped in case of the pole changing and then is started again in response to the actuation of the switch. This control system is especially adapted for use in a pole-changing-motor-driven compressor used in a refrigeration cycle of an air conditioner.

REFERENCES:
patent: 3102677 (1963-09-01), Evans et al.
patent: 3305715 (1967-02-01), Stenger
patent: 3978382 (1976-08-01), Pfarrer et al.

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