公开(公告)号：US4393290A

公开(公告)日：1983-07-12

申请号：US128897

申请日：1980-03-10

申请人： Gunter Mittelbach ,  Gunter Horstmann ,  Werner Heiss ,  Dietrich Hoffmann ,  Gunter Siebrecht ,  Karl Kriechbaum ,  Gunter Rapp

发明人： Gunter Mittelbach ,  Gunter Horstmann ,  Werner Heiss ,  Dietrich Hoffmann ,  Gunter Siebrecht ,  Karl Kriechbaum ,  Gunter Rapp

IPC分类号： H01H1/38 ,  H01H33/91 ,  H01H33/88

CPC分类号： H01H33/91 ,  H01H1/385

摘要： A puffer-type gas blast circuit interrupter composed of two separable contacts defining a power current path and between which an arc is created upon separation movement, in which the movable parts of the gas compressor and/or the region of contact between the contacts of an associated nominal current path are shielded from the region in which the arc is created by a shielding arrangement composed of a stationary cylinder surrounding the nozzle associated with the gas compressor and a shield member carried by the nozzle. Additionally, to reduce the movable mass of the interrupter, at least one of the current paths is constituted by two stationary contact pieces and a movable contact member carried by, and projecting from, the cylinder of the gas compressor. Further, the mass of the moving parts of the system is reduced by providing the shield member carried by the nozzle with a cylindrical projection coaxial with, and slidable relative to, the stationary cylindrical member. Preferably, the interface between the shield member and the cylindrical member is hermetically sealed.

摘要翻译： 一种由两个可分离触点组成的吹气式气体爆炸电路断路器，其限定电力通路，并且在分离运动之间产生电弧，其中气体压缩机的可移动部分和/或触点之间的接触区域 相关联的标称电流路径由围绕与气体压缩机相关联的喷嘴的静止气缸和由喷嘴承载的屏蔽构件构成的屏蔽装置与由其产生电弧的区域屏蔽。 此外，为了减小断路器的可移动质量，至少一个电流路径由两个固定接触件和由气体压缩机的气缸承载并从其中突出的可动接触构件构成。 此外，通过将由喷嘴承载的屏蔽构件设置成与固定圆柱形构件同轴并且可相对于静止圆柱形构件滑动的圆柱形突起来减小系统的运动部件的质量。 优选地，屏蔽构件和圆柱形构件之间的界面是密封的。