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    • 6. 发明授权
    • Electrical contact construction for air-blast circuit breakers
    • 气动断路器的电气接触结构
    • US4321439A
    • 1982-03-23
    • US90122
    • 1979-11-01
    • Rudiger HessHeiner Marin
    • Rudiger HessHeiner Marin
    • H01H33/88H01H33/18H01H33/70H01H33/91
    • H01H33/91H01H33/7053
    • An electrical contact construction for air-blast circuit breakers, particularly blast-piston or "puffer" type breakers, which subject the arc drawn during current interruption to a compressed-gas blast as well as a magnetic-force effect which lengthens the arc. To increase the interruption capacity of such breakers, and particularly to improve arc behavior during the interruption process, a tubular member is disposed within the interior spaces of the tubular contacts of such a breaker in which the switching gases flow. The member has an inner surface which is conically shaped and is matched to the contour of openings provided in nozzle members disposed at the end faces of the tubular contacts to improve gas flow.
    • 用于气动断路器的电接触结构,特别是鼓风活塞或“波纹”型断路器,其在电流中断期间将电弧吸收到压缩气体爆炸以及延长电弧的磁力作用。 为了增加这种断路器的中断能力,特别是为了改善中断过程中的电弧行为,管状构件设置在开关气体流过的这种断路器的管状触点的内部空间内。 该构件具有圆锥形的内表面,并且与设置在管状触点的端面处的喷嘴构件中的开口轮廓相匹配,以改善气体流动。