Remotely controllable circuit breaker

Details Remotely controllable circuit breaker Remotely controllable circuit breaker

1985-09-05

1986-08-05

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 6, 335 16, 335 20, H01H 7500

Patent

active

046045961

ABSTRACT:
An improved remotely controllable circuit breaker comprises a manually operable switching mechanism for opening and closing a single set of first and second contacts, a trip mechanism for opening the contacts upon occurrence of predetermined overload current conditions, and a remotely controllable switching mechanism for selectively opening and closing the contacts in response to a control signal remote from the breaker. The manually operable switching mechanism includes a movable contact arm carrying the first contact to be brought into and out of contacting engagement with the second contact by manipulation of a manual handle. The second contact is operatively connected to the remotely controllable switching mechanism to be driven thereby for movement between an operative position where the second contact is engageable with the first contact and an inoperative position where it is prohibited from being engaged with the first contact independently of the position of the first contact. Accordingly, the remotely controllable mechanism can be entirely isolated from the manually operable switching mechanism when the former is responsive to the remote control signal for bringing the second contact into its inoperative position.

REFERENCES:
patent: 4167716 (1979-09-01), Horn
patent: 4178572 (1979-12-01), Gaskill et al.
patent: 4223288 (1980-09-01), Stiner
patent: 4292612 (1981-09-01), Howell

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