Method and apparatus for indicating the leakage resistance in an

Details Method and apparatus for indicating the leakage resistance in an Method and apparatus for indicating the leakage resistance in an

1975-03-27

1979-06-26

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

361 42, 324 51, H02H 316

Patent

active

041595017

ABSTRACT:
The present invention contemplates an improved method and control apparatus for indicating the leakage resistance in an electrical system wherein the electrical system generally includes an alternating current power source connected to a load via a conductor assembly, and wherein the control apparatus generally includes: a direct current power source connected to the electrical system for impressing a direct current control signal on the electrical system, and a portion providing an output indication of the leakage resistance in the electrical system.

REFERENCES:
patent: 3058035 (1962-10-01), Brown
patent: 3286129 (1966-11-01), Gagniere
patent: 3376476 (1968-04-01), Porterfield et al.
patent: 3483470 (1969-12-01), Tsergas
patent: 3492567 (1970-01-01), Rissolo
patent: 3656136 (1972-04-01), Blair
patent: 3665252 (1972-05-01), Rogers et al.
patent: 3666993 (1972-05-01), Legatti
patent: 3757169 (1973-09-01), Beresnikow
patent: 3764853 (1973-10-01), Beachley, Jr.
patent: 3836844 (1974-09-01), Prugh

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