Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1978-11-24
1981-09-22
Truhe, J. V.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148C, 200150G, H01H 3388
Patent
active
042912083
ABSTRACT:
A gas-insulated circuit interrupter includes stationary and movable contact assemblies which are cooperable with each other to transmit or interrupt electrical current. Means are provided for moving the movable contact assembly, and for establishing a flow in the circuit interrupter during an opening interruption to estinguish the arc which is drawn between the stationary and movable arcing contacts. A hollow insulating nozzle is utilized for directing gas flow. The interior surface of the nozzle is shaped so as to direct a flow of insulating gas to blast into the arc, and the exterior surface of the nozzle is contoured such as to deflect the flow of insulating gas away from the movable main contacts.
REFERENCES:
patent: 3909572 (1975-09-01), Tsubaki et al.
patent: 4139753 (1979-02-01), Cromer et al.
Caithness Michael G.
Cromer Charles F.
Hess Robert L.
Kelsey Thomas
Yoon Kue H.
Boles D. M.
Ginsburg Morris
Northern Engineering Industries Ltd.
Truhe J. V.
Westinghouse Electric Corp.
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