Double-break puffer-type compressed-gas circuit-breaker

Details Double-break puffer-type compressed-gas circuit-breaker Double-break puffer-type compressed-gas circuit-breaker

1976-11-26

1978-10-17

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148C, 200147R, H01H 3388

Patent

active

041210751

ABSTRACT:
A double-break puffer-type compressed-gas circuit-interrupter is provided having a common piston-and-cylinder arrangement for simultaneously forcing a blast of compressed gas through suitably-disposed jet apertures into a pair of serially-established arcs, the operating arrangement being such that there occurs simultaneous operation of the piston-and-cylinder arrangement, together with opening motion of the bridging cross-bar, electrically and mechanically interconnecting the two movable contacts.
An ancillary feature of the invention involves the provision of suitable arc-horns, associated with each of the break structures, so that the inherent looping of the electrical circuit through the circuit-interrupter results in electromagnetic repulsion forces, to exert an outward electromagnetic force exerted upon each of the two serially-related arcs. Preferably, laterally-disposed arc-splitters, formed of a suitable insulating material, accommodate the looping effect of the two arcs, and thus result in their considerable elongation around the spaced insulating splitters to thereby lengthen them and to attenuate the two series arcs.

REFERENCES:
patent: 1039264 (1912-09-01), Dewson
patent: 2095441 (1937-10-01), Howe
patent: 2959599 (1949-01-01), Strom

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