Internal protection circuit for electrically driven device

Details Internal protection circuit for electrically driven device Internal protection circuit for electrically driven device

1992-02-07

1993-04-06

Stephan, Steven L.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

361103, 310 68C, H02H 708, H02K 1100

Patent

active

052008720

ABSTRACT:
Protection for an encased motor driven device is enhanced by utilizing additional sensors with associated resistance heaters to actuate the thermally responsive contacts of the internal line break. The sensors and heaters are powered from an auxiliary winding in the motor coils. When applied to a hermetic scroll compressor, the compressor can be protected against reverse rotation.

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