Puffer type gas circuit interrupter

Details Puffer type gas circuit interrupter Puffer type gas circuit interrupter

1991-03-12

1992-10-13

Scott, J. R.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200150G, H01H 3370, H01H 3388

Patent

active

051553120

ABSTRACT:
An interrupter including a gas pressurizer for pressurizing a gas to flow toward a forward end of at least one contact of the interrupter, and a first orifice forming a first space with the forward end of the at least one contact for passing the gas pressurized by the gas pressurizer when a flow of electric current is interrupted. A second orifice forms a second space with the at least one contact for passing the gas which passed through the first orifice, with a chamber being formed between the first and second orifices. The chamber has an inner diameter greater than an inner diameter of the first and second orifices. At least one pressurized gas passage is provided through which a portion of the pressurized gas is supplied to the chamber without passing the first orifice so that the pressurized gas supplied to the chamber through the pressurized gas passage flows to the first space formed by the forward end of the at least one contact and the first orifice.

REFERENCES:
patent: 3668352 (1972-06-01), Teijeiro
patent: 3708639 (1973-01-01), Vigreux et al.
patent: 3816684 (1974-06-01), Teijeiro
patent: 4320270 (1982-03-01), Graf et al.
patent: 4471188 (1984-09-01), Van et al.
patent: 4716266 (1987-12-01), Muscaglione et al.
patent: 4939322 (1990-07-01), Kashimura et al.

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