公开(公告)号：US5828540A

公开(公告)日：1998-10-27

申请号：US892129

申请日：1997-07-14

申请人： Jean Marmonier ,  Herve Lefort

发明人： Jean Marmonier ,  Herve Lefort

IPC分类号： H01H9/16 ,  H01H9/56 ,  H01H47/00 ,  H01H71/46

CPC分类号： H01H9/167 ,  H01H9/56 ,  H02H3/044 ,  H02H3/05 ,  H01H47/002

摘要： The invention relates to a method of protecting against circuit breaker failure, said circuit breaker having contacts capable of moving between a closed position and an open position, and vice versa, and being fitted with protection apparatus including fault detector apparatus for putting into operation an opening electromagnetic coil that actuates circuit breaker contact drive apparatus, with position-indicator contacts of monitor apparatus being changed over as soon as the circuit breaker contacts start to move. According to the invention, in the event of a fault being detected, a time delay is generated from the indicator contacts changing over, and at the end of said time delay it is verified whether the fault current has become zero, and if not an alarm is generated.

摘要翻译： 本发明涉及一种防止断路器故障的方法，所述断路器具有能够在闭合位置和打开位置之间移动的触点，反之亦然，并且装有保护装置，该保护装置包括用于投入运行的故障检测装置 电磁线圈，其致动断路器触点驱动装置，一旦断路器触点开始移动，监视器装置的位置指示器触点被切换。 根据本发明，在检测到故障的情况下，从指示器触点切换产生时间延迟，并且在所述时间延迟结束时，验证故障电流是否已经变为零，并且如果不是报警 被生成。