Remotely controllable circuit breaker

Details Remotely controllable circuit breaker Remotely controllable circuit breaker

1988-05-17

1989-11-07

Broome, H.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 6, 335 20, H01H 7500

Patent

active

048795356

ABSTRACT:
An improved circuit breaker with remote control capability includes an electromagnet energized by a remote control signal to open and close a power contact through a collapsible mechanical linkage. The breaker also includes a manual handle which is mechanically isolated from the mechanical linkage interposed between the electromagnet and the power contact but is connected to a control switch for opening and closing the same when it is manipulated between an ON-position and an OFF-position. The control switch is utilized to be connected in a control circuit for the electromagnet in a suitable electrical relation with an excitation coil of the electromagnet to provide a desired load managing control mode. A fault current responsive tripper is interlocked with the mechanical linkage so as to collapse the same for opening the power contact upon the occurrance of a predetermined fault current condition, whereby the circuit interruption due to the fault current condition can be effected by directly driving the mechanical linkage and without actuating the electromagnet.

REFERENCES:
patent: 4456832 (1984-06-01), Greer et al.
patent: 4598263 (1986-07-01), Heyne et al.
patent: 4604596 (1986-08-01), Yokoyama et al.
patent: 4623859 (1986-11-01), Erickson et al.
patent: 4682132 (1987-07-01), Belbel et al.
patent: 4700160 (1987-10-01), Belbel et al.
patent: 4768025 (1988-08-01), Vila-Masot

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