Fault detection circuit for use in determining the existence of

Details Fault detection circuit for use in determining the existence of Fault detection circuit for use in determining the existence of

1992-11-27

1994-05-24

Strecker, Gerard R.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of electrically operated apparatus

324510, 324158MG, 340661, 361 90, G01R 3102

Patent

active

053152565

ABSTRACT:
A fault detection circuit for a plurality of DC loads uses a reference load as a benchmark. The voltages at the centerpoints of the loads to be monitored are monitored and compared with the voltage of the centerpoint of the reference load. The comparison is affected by faults which do not affect all loads equally (as by a short or open) and is unaffected by faults which do affect all loads equally (as by changes in voltage of the source).

REFERENCES:
patent: 1523803 (1925-01-01), Goodwin, Jr.
patent: 2700125 (1955-01-01), King et al.
patent: 4814931 (1989-03-01), Kugelman et al.
patent: 4823227 (1989-04-01), Grant
patent: 4999730 (1991-03-01), Pickard
Darold K. Smith, "Monitor Guards Three Ways Against Power Failures", Oct. 27, 1969, p. 97; Electronics.

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