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1. 发明授权

US4123618A Vapor-cooled terminal-bushings for oil-type circuit-interrupters 失效
标题翻译：用于油型电路断路器的蒸气冷端子衬套
公开(公告)号：US4123618A
公开(公告)日：1978-10-31
申请号：US694105
申请日：1976-06-09
申请人： George B. Cushing , Richard E. Kothmann
发明人： George B. Cushing , Richard E. Kothmann
IPC分类号： H01H1/62 , H01B17/26 , H01B17/54 , H01H33/02 , H01H33/68 , F28D5/00
CPC分类号： H01F27/18 , H01B17/26 , H01B17/54 , H01H33/68 , H01H2009/523 , H01H2033/6613
摘要： An improved vapor-cooled terminal-bushing is provided for increased current-carrying capacity, such as 6,000 amperes, for example, in an oil-type circuit-breaker, being provided with a "dry" body portion, utilizing resinous materials, such as epoxy-resin formulations, for example.Preferably, the body portion of resinous materials, such as epoxy resin, for example, is composite, or of a two-piece construction, having an inner first epoxy-resin formulation having improved dielectric strength, and an outer-disposed externally-located "petticoat"-type insulating second body portion, having weather-sheds, the second weather-shed annular body portion being preferably cast directly onto the inner high-dielectric-strength first epoxy-body portion, and having some flexibility for adherence purposes.An externally-located tubular metallic preferably finned heat-exchanger or cooling condenser, having a tubular central hub portion, constitutes an extension of the inner, elongated, tubular, high-voltage terminal-lead, which is partially filled with a low-boiling-point cooling liquid or refrigerant, such as "Freon-11", for example. A massive metallic line-terminal connector is affixed to the terminal-lead intermediate the location of the heat-exchanger and the adjacent end of the body portion for additional heat-dissipation purposes. A pressure gauge is attached at the upper end of the heat-exchanger in vapor communication with the cooling liquid within the terminal-lead.
摘要翻译：提供了一种改进的蒸气冷却端子衬套，用于提高例如在油型断路器中的6000安培的载流能力，其设置有“干燥”的主体部分，利用树脂材料，例如环氧树脂配方。

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