High speed contact driver for circuit interruption device

Details High speed contact driver for circuit interruption device High speed contact driver for circuit interruption device

1986-10-16

1987-10-06

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Contact-actuating means

335 16, 335147, 200147R, H01H 5300

Patent

active

046986073

ABSTRACT:
A bridging contact is arranged across two fixed contacts with a pair of parallel, closely spaced conductors serving as the bridging contact carrier. The conductors each form a pair of upper and lower links joined by means of a toggle pivot pin and are refrained from movement by means of a pair of tension springs. A high current pulse in opposite direction within the parallel conductors generates electromagnetic forces which propels the conductors apart. The bridging contact carried by the parallel conductors is thereby rapidly driven out of contact relation with the fixed contacts to interrupt the circuit.

REFERENCES:
patent: 1720566 (1929-07-01), Pestarini
patent: 3002065 (1961-09-01), La Tour, Jr.
patent: 3168626 (1965-02-01), Patrick
patent: 3215796 (1965-11-01), Leisi
patent: 4039983 (1977-08-01), Terracol et al.
patent: 4598187 (1986-07-01), Howell
patent: 4646041 (1987-02-01), Howell
U.S. Patent Applic. Ser. No. 610,947, filed May 16, 1984, E. K. Howell, "Solid State Current Limiting Circuit Interrupter".
U.S. Patent Applic. Ser. No. 770,931, filed 8/30/84, E. K. Howell, "Low Voltage Vacuum Circuit Interrupter".
U.S. Patent Applic. Ser. No. 814,865, filed 12/30/85, E. K. Howell, "High Speed Contact Driver for Circuit Interruption Device".

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