Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1978-11-06
1980-09-23
Truhe, J. V.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148A, 200148G, H01H 3370
Patent
active
042244900
ABSTRACT:
The contacts and nozzle of a fluid blast circuit breaker are constructed to have a cross section with a shape other than circular or square. Such cross section facilitates providing the fluid for extinguishing an arc in a circuit breaker at a velocity perpendicular to the arc greater than the fluid velocity in a circular or square configuration nozzle having the same cross sectional area. Such high velocity fluid flow facilitates interrupting the arc by increasing the cooling rate of fluid flow past the arc.
REFERENCES:
patent: 2133938 (1938-10-01), Ruppel
patent: 2798922 (1957-07-01), Lingal et al.
patent: 3679851 (1972-07-01), Latour et al.
Davis Jr. James C.
General Electric Company
Ginsburg Morris
Herkamp Nathan D.
Truhe J. V.
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