公开(公告)号：US3649792A

公开(公告)日：1972-03-14

申请号：US3649792D

申请日：1969-12-10

申请人： COQ NV

发明人： FROWEIN EGBERTUS A

IPC分类号： H01H33/83 ,  H01H33/867 ,  H01H33/873 ,  H01H33/86

CPC分类号： H01H33/83

摘要： A gas-blast circuit breaker comprising, within a switching chamber permanently filled with extinguishing gas under overpressure, a first and a second switching contact, the switching-off action of said switching contacts being effected by pistons which are spring biased against such action and are mounted within cylinders associated with said switching contacts, respectively, at least one of said cylinders being permanently in open communication with said switching chamber, a locking member being provided which is adapted to be released by a switching-off command and which is holding the switching contacts in their respective rest positions corresponding to the closed condition of the circuit breaker.

摘要翻译： 一种气体断路器，包括在超压下永久充满灭火气体的开关室内具有第一和第二开关触点，所述开关触点的关断动作由针对这种动作而被弹簧偏置的活塞实现，并且是 安装在与所述开关触点相关联的气缸内，所述气缸中的至少一个与所述开关室永久地开放连通;提供锁定构件，所述锁定构件适于通过断开指令释放并保持所述开关 触点处于与断路器的闭合状态对应的各自的静止位置。