Ground-test circuit with minimal ground current

Details Ground-test circuit with minimal ground current Ground-test circuit with minimal ground current

1974-10-04

1977-04-05

Mullins, James B.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

340255, G01R 3102

Patent

active

040164896

ABSTRACT:
Ground-test device indicating when the connection to ground has become lost and passing no more than about 12 microamperes of current into the ground system. The device also develops an indication when the wiring from the source of a.c. power suffers from reversed polarity or when the common, or neutral, connection floats appreciably above ground. When no abnormality exists, the circuit introduces less than about 0.6 microamperes to ground.

REFERENCES:
patent: 2999189 (1961-09-01), Gerrard
patent: 3222663 (1965-12-01), Dennis
patent: 3386002 (1968-05-01), Russell
patent: 3699392 (1972-10-01), Lee et al.
patent: 3716876 (1973-02-01), Petzon
patent: 3783340 (1974-01-01), Becker
patent: 3913153 (1975-10-01), Adams et al.

Affiliated with

Also associated with

Rating

Ground-test circuit with minimal ground current does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ground-test circuit with minimal ground current, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ground-test circuit with minimal ground current will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2269029