Method and apparatus for arc quenching

Details Method and apparatus for arc quenching Method and apparatus for arc quenching

1974-07-25

1976-03-30

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200147R, 200150C, 200148H, H01H 3300

Patent

active

039476499

ABSTRACT:
An improved method for quenching an arc in an AC circuit breaker having an arc chamber in which the arc rotates in a quenching medium between open electrodes having ends close together in which the arc is caused to generate during its rotation, through a heating of the quenching medium, an over-pressure which is maintained beyond the zero crossing of the AC current with the gas flow produced by the over-pressure use for blasting the arc in the nozzle. Various embodiments for use in medium and high voltage switching installations which permit the switching of large currents with a simple and inexpensive arrangement are illustrated.

REFERENCES:
patent: 977193 (1910-11-01), Hunsicker
patent: 2507971 (1950-05-01), Guillaume et al.
patent: 2644877 (1953-07-01), Guillaume
patent: 2908789 (1959-10-01), Lange
patent: 3725623 (1973-04-01), Fischer et al.
patent: 3849617 (1974-11-01), Pflanz
patent: 3858076 (1974-12-01), Mitchell

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