Malfunction detector for detecting open-circuit condition at DC

Details Malfunction detector for detecting open-circuit condition at DC Malfunction detector for detecting open-circuit condition at DC

1984-10-10

1987-01-06

Hickey, R. J.

Electricity: single generator systems

With signals, indicators, recorders, testing, etc.

324158MG, 361 20, H02P 900, G01R 3100, H02J 714

Patent

active

046349553

ABSTRACT:
A malfunction detector for detecting an open-circuit condition at the output terminal of a vehicular DC generator is disclosed. The frequency of a signal derived from one of the armature windings of the generator, for instance, at an end or neutral terminal, is compared with the control frequency of the voltage regulator, which may be derived from a field winding of the generator. If the latter is equal to the former, an indication of an open-circuit condition is given.

REFERENCES:
patent: 3305774 (1967-02-01), Heath
patent: 3705331 (1972-12-01), South et al.
patent: 4041369 (1977-08-01), King et al.
patent: 4178546 (1979-12-01), Hulls
patent: 4242674 (1980-12-01), Wheeler
patent: 4471308 (1984-09-01), Gable et al.
patent: 4528493 (1985-07-01), Spencer et al.

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