Ground fault detector and locator

Details Ground fault detector and locator Ground fault detector and locator

1989-01-03

1989-11-28

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

324528, 340650, 340651, G01R 3108

Patent

active

048840343

ABSTRACT:
A ground fault detector and locator for use in servicing ungrounded d-c or a-c power distribution systems. A pulsating ground current is introduced between the unfaulted side of the distribution system and earth ground. A current probe and associated sensing circuits are then employed to identify the faulted branch circuit without interrupting service to unfaulted branch circuits.

REFERENCES:
patent: 4002968 (1977-01-01), Reid
patent: 4151460 (1979-04-01), Seese et al.
patent: 4417202 (1983-11-01), Pascoe
patent: 4556946 (1985-12-01), Taniguti
patent: 4584555 (1986-04-01), Domorazek
patent: 4739274 (1988-04-01), Kimball et al.
patent: 4739275 (1988-04-01), Kimball et al.

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