Method utilizing an automatic resettable circuit breaker for loc

Details Method utilizing an automatic resettable circuit breaker for loc Method utilizing an automatic resettable circuit breaker for loc

1976-11-01

1978-08-01

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 3108

Patent

active

041045815

ABSTRACT:
A method and apparatus for locating a grounded fault in an electrical circuit. An automatic resettable circuit breaker having two terminals is connected across a source of power and the circuit under test. The grounded fault condition causes the resettable circuit breaker to continually recycle in the presence of the grounded fault. An induction current measuring ammeter is movably positioned over the circuit under test to measure the varying current caused by the resettable circuit breaker. The actual location of the ground is determined by the immediate absence of a measured varying current.

REFERENCES:
patent: 2103179 (1937-12-01), Rennau
patent: 2641633 (1953-06-01), Hosford
patent: 2716216 (1955-08-01), Schwenzfeier
patent: 3076931 (1963-02-01), Jasper
patent: 3621384 (1971-11-01), Yamada
patent: 3623142 (1971-11-01), Key
patent: 3699433 (1972-10-01), Smith
patent: 3753089 (1973-08-01), Gunn et al.

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