Portable breakload tool

Details Portable breakload tool Portable breakload tool

1986-07-21

1987-10-13

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148H, 200150C, H01H 3312

Patent

active

047000287

ABSTRACT:
A portable breakload tool which permits opening of electric devices under load so that the opening is made without apparent external arc. The tool includes an arch quenching chamber in which two fixed contacts and a rotatable contact are positioned. The movable contact is operated externally to cut current between the contacts. The electric arc is confined within the chamber and is quenched by the sulfur hexafluoride gas which fills the chamber.

REFERENCES:
patent: 2144414 (1939-01-01), Milliken
patent: 2644877 (1953-07-01), Guillaume
patent: 2816982 (1957-12-01), Barta
patent: 2838636 (1958-06-01), Schwager
patent: 3371176 (1968-02-01), Leeds

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