Overload detecting scheme for an electric propulsion system for

Details Overload detecting scheme for an electric propulsion system for Overload detecting scheme for an electric propulsion system for

1975-04-10

1980-04-29

Hickey, Robert J.

Electricity: single generator systems

Generator control

With excitation winding and/or circuit control

290 14, 318139, 361 20, B60L 1102, H02H 708

Patent

active

042008328

ABSTRACT:
For detecting electrical overloads in a traction vehicle propulsion system wherein the output of a prime mover-driven electric generator is controlled by varying the on-off duty cycle of an intermittently conductive switch connected in series with a field winding of the generator excitation means, monitoring means is connected across the field switch to produce an output signal in response to the field switch being continuously conductive for an abnormally long period of time which is indicative of an over-excited condition.

REFERENCES:
patent: 3551685 (1970-12-01), Corry
patent: 3705331 (1972-12-01), South et al.
patent: 3838294 (1974-09-01), Leete
patent: 3858108 (1974-12-01), Bray
patent: 3902105 (1975-08-01), Delaney et al.
patent: 3914675 (1975-10-01), Konrad
patent: 3938005 (1976-02-01), Cummins

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