Current detecting apparatus

Details Current detecting apparatus Current detecting apparatus

1983-08-29

1985-04-23

Eisenzopf, Reinhard J.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

361 42, 361 87, H02H 328

Patent

active

045133395

ABSTRACT:
A current detecting device includes high frequency oscillation detecting circuits which, when a saturable reactor oscillates at a high frequency, detect the high frequency oscillation of the reactor and generate a high level output. Thus, when a large current flows through the reactor and the magnetization characteristic of the reactor is varied to generate a normal detection output, the reactor oscillation due to the large current is detected and an operating circuit for driving an external device is energized.

REFERENCES:
patent: 4135222 (1979-01-01), Siepmann

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