Circuit arrangement to protect a semi-conductor switch which can

Details Circuit arrangement to protect a semi-conductor switch which can Circuit arrangement to protect a semi-conductor switch which can

1984-01-27

1986-07-15

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 94, 361 98, H02H 308

Patent

active

046009639

ABSTRACT:
A circuit arrangement for protecting a remotely controllable semi-conductor switch which closes to interrupt an alternating current circuit in order to protect against an overload is disclosed in which a flip-flop is connected to control the operation of a current control circuit connected to the output of the semi-conductor switch in the event of an overload or short-circuit condition in the AC circuit. Provision may also be made for transient overload conditions, as well as providing a visual indication of the conducting condition of the semi-conductor switch.

REFERENCES:
patent: 3329870 (1967-07-01), DeViney et al.
patent: 3936700 (1976-02-01), Reiter
patent: 4271448 (1981-06-01), Pond
patent: 4277811 (1981-07-01), Sato
patent: 4355342 (1982-10-01), Franzolini
patent: 4438473 (1984-03-01), Cawley et al.

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