Method and apparatus for monitoring the integrity of a multiple-

Details Method and apparatus for monitoring the integrity of a multiple- Method and apparatus for monitoring the integrity of a multiple-

1990-11-23

1992-06-02

Harvey, Jack B.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of ground fault indication

324509, 379 26, G01R 3102

Patent

active

051190311

ABSTRACT:
A ground integrity monitor for testing for a short circuit between two equipotential ground planes having a single common connection point includes an AC generating circuit for coupling to one of the ground planes a signal having predetermined frequency and magnitude characteristics. An AC detecting circuit coupled to the other of the ground planes is adapted to detect the AC signal within a predetermined range of magnitude and frequency. Presence of the signal on the other ground plane indicates the existence of a short circuit.

REFERENCES:
patent: 4228475 (1980-10-01), Sherwood
patent: 4991105 (1991-02-01), Pimental

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