Circuit breaker

Details Circuit breaker Circuit breaker

1980-08-13

1983-05-10

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148A, H01H 3370

Patent

active

043831524

ABSTRACT:
A circuit breaker is disclosed in which a compressed quenching medium, heated by an arc, is rapidly removed from a main duct in such a manner that the arc is effectively blown by axially opposing flows of quenching medium. The circuit breaker includes a nozzle made of an insulating substance and having the main duct. A first contact piece is slidingly accommodated in the main duct, and a second contact piece is fixedly connected to the nozzle. The nozzle includes a first blow duct having a first blow orifice, and an exhaust duct having an exhaust orifice. A second blow duct having a second blow orifice is included between the nozzle and the second contact piece. The first and second blow orifices are axially spaced from each other, and the exhaust orifice is located between the first and second blow orifices.

REFERENCES:
patent: 3739125 (1973-06-01), Noeske
patent: 3816684 (1974-06-01), Teijeiro
patent: 4048456 (1977-09-01), Noeske

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