Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1978-03-23
1981-03-31
Rubinson, Gene Z.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148B, 200150D, H01H 3374
Patent
active
042595550
ABSTRACT:
A circuit interrupter comprising a first pressure chamber for quickly increasing the pressure of an arc extinguishing gas therein by utilizing the energy of an electric arc established between a pair of separable contacts, and a second pressure chamber disposed around the first pressure chamber for releasing the arc extinguishing gas together with the high pressure gas upon the decrease of the arc current. The arc is extinguished by high pressure arc extinguishing gas released from the second pressure chamber. The first and the second pressure chambers are connected by a communication port having a check valve therein to increase the pressure of the arc extinguishing gas within the second pressure chamber.
REFERENCES:
patent: 4032736 (1977-06-01), Ruffieux et al.
patent: 4046979 (1977-09-01), Hertz et al.
patent: 4139752 (1979-02-01), Itai et al.
Adams Bruce L.
Burns Robert E.
Ginsburg Morris
Lobato Emmanuel J.
Mitsubishi Denki & Kabushiki Kaisha
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