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怎样判断空气开关坏了
更新时间: 2021-06-10 00:18:54  

1、先把空气开关的负载端下掉,(出线端)再推空气开关,如果推得上,说明负载端有问题,推不上就说明你的空气开关坏了,换一个。

2、在正常情况下,过电流脱扣器的衔铁是释放着的;一旦发生严重过载或短路故障时,与主电路串联的线圈就会产生较强的电磁吸力把衔铁往下吸引而顶开锁钩,使主触点断开。欠压脱扣器的工作恰恰相反,在电压正常时,电磁吸力吸住衔铁,主触点才得以闭合。一旦电压严重下降或断电时,衔铁就被释放而使主触点断开。当电源电压恢复正常时,必须重新合闸后才能工作,实现了失压保护。

关键词: 怎样 判断 空气 开关

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