Dynamoelectric machine, method of operating such, and circuit

Details Dynamoelectric machine, method of operating such, and circuit Dynamoelectric machine, method of operating such, and circuit

1980-05-23

1982-01-26

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Primary circuit control

318785, 318797, 318425, 318525, 310198, H02P 144

Patent

active

043130763

ABSTRACT:
A dynamoelectric machine having a low A ratio during its starting mode and a high A ratio during its running mode. During the starting mode of the dynamoelectric machine, an auxiliary winding serially connected in bucking relation with a phase winding is excited therewith across a main winding. Generally as the dynamoelectric machine is energized to a predetermined speed indicative of the occurrence of its running mode, the phase winding and the bucking auxiliary winding are electrically disassociated, and another auxiliary winding serially connected and arranged in additive relation with the phase winding is excited therewith across the main winding.
A method of operating a dynamoelectric machine and a circuit are also disclosed.

REFERENCES:
patent: 1912337 (1933-05-01), Kennedy
patent: 3348109 (1967-10-01), Wright
patent: 4063135 (1977-12-01), Wanlass
patent: 4107583 (1978-08-01), Houtman
patent: 4152630 (1979-05-01), Wanlass

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