Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1993-03-26
1993-12-28
Scott, J. R.
Electricity: circuit makers and breakers
Liquid contact
Time delay
H01H 3388
Patent
active
052742059
ABSTRACT:
A gas blast circuit breaker comprises an insulation nozzle for blowing extinguishing gas to an arc generated between a stationary contact and a movable contact. The nozzle has a throat section into and out of which one of the two contacts is movable and a divergent section provided downstream of the throat section. A slanting surface for increasing a reflectivity of energy intensity of the arc is formed on the divergent section of the nozzle. The nozzle is formed of a fluoroplastic material and boron nitride powder of not more than 15 vol. % is added as a filler.
REFERENCES:
patent: 4144426 (1979-03-01), Kowalik et al.
patent: 4320270 (1982-03-01), Graf et al.
patent: 4327262 (1982-04-01), Kull
patent: 4418256 (1983-11-01), Graf
patent: 4420662 (1983-12-01), Niemeyer et al.
patent: 4471185 (1984-09-01), Kinsinger
patent: 4489226 (1984-12-01), Holmgren et al.
patent: 4562322 (1985-12-01), Yamaguchi et al.
patent: 4667072 (1987-05-01), Endo et al.
patent: 4791256 (1988-12-01), Yonezawa et al.
patent: 4841108 (1989-06-01), Hamm
IEEE Standard Handbook for Electrical Engineers; Section 4-Properties of Materials-Table 4-59-; p. 4-138; 1969.
Endo Fumihiro
Hashimoto Akira
Hirasawa Kunio
Kurosawa Yukio
Satoh Minori
Hitachi , Ltd.
Scott J. R.
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