Low winding resistance protective device

Details Low winding resistance protective device Low winding resistance protective device

1980-02-27

1982-03-09

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

340648, H02H 708

Patent

active

043192971

ABSTRACT:
A low winding resistance protective system for electrical motors comprising sensing apparatus for coupling to at least one motor winding and for comparing the winding resistance of a motor when at rest to a predetermined threshold and for providing an output indication in response to exceedance of that threshold and decoupling apparatus for decoupling the at least one motor winding from the sensing apparatus such that high voltages applied to the at least one motor winding during operation of the motor are prevented from reaching the sensing apparatus.

REFERENCES:
patent: 3611036 (1971-10-01), Edson
patent: 3656136 (1972-04-01), Blair

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