Short circuit and overload protection circuit which allows a pre

Details Short circuit and overload protection circuit which allows a pre Short circuit and overload protection circuit which allows a pre

1993-07-27

1995-03-21

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Automatic reclosing

361 71, H02H 307

Patent

active

054002060

ABSTRACT:
An overcurrent protection circuit is provided with a counter which permits a preselected number of reinitiations of current following the detection of an overcurrent condition. Each stoppage of current in response to the detection of an overcurrent condition is followed by a predetermined time delay and a subsequent reinitiation of current. After the predetermined number of reinitiations, current is permanently stopped from flowing between first and second circuit points until a manual reset occurs.

REFERENCES:
patent: 3801872 (1974-04-01), Zocholl et al.
patent: 4241372 (1980-12-01), Sears
patent: 4316230 (1982-02-01), Hansen et al.
patent: 4454556 (1984-06-01), DePuy
patent: 4709292 (1987-11-01), Kuriyama et al.
patent: 4795980 (1989-01-01), Schmitt

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