Reducing harmonic losses in dynamoelectric machine rotors

Details Reducing harmonic losses in dynamoelectric machine rotors Reducing harmonic losses in dynamoelectric machine rotors

1990-05-11

1991-07-09

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310214, H02K 3487, H02K 502

Patent

active

050308718

ABSTRACT:
A solid rotor for a dynamoelectric machine including field conductors and ventilation passages in axial slots is provided with low resistivity thermally conductive axial winged inserts which seal and overlie the slots to form a low resistivity cylinder about the rotor to minimize power losses and associated heating due to harmonic induced eddy currents, enhance the conductive cooling of the rotor, and increase efficiency.

REFERENCES:
patent: 3324324 (1967-06-01), Richardson et al.
patent: 3866070 (1975-02-01), Madsen
patent: 4843271 (1989-06-01), Shah
patent: 4900964 (1990-02-01), Ying et al.

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