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铝电解电容器的故障处理
Edit:管理员 Browse: Times Date:2016-07-15
铝电解电容器的故障处理
铝电解电容
器的断路跳闸,而分路保险未断,应先对铝
电解电容
器放电三分钟后,再检查断路器电流互感器电力电缆及
电容
器外部等,若未发现异常,则可能是由于外部故障母线电压波动所致,下面让我们来看一下铝电解电容器的故障处理方法有哪些?
1. 故障
铝电解电容
应在断开电容器的断路器,拉开断路器两侧的隔离开关,并多电容器组放电后进行。
2. 保护全面的通电测试,通过以上的检查,试验,若仍找不出原因,则需按制度办理对铝电解电容逐渐进行试验,未查明原因之前,不得试投。
3.
电解电容
器经放电
电阻
,放电变压器或放电电压互感器放电之后,由于部分残余电荷一时放不尽应将接地的接地端固定好,再用接地棒多次对铝
电解电容
器放电直至火花及放电声为止,然后将接地卡固定好。
4. 由于
铝电解电容
器发生故障可能发生引线接触不良,内部断线或保险熔断等现象,因此仍可能有部分电荷未放出来,所以检修人员在接触故障
电容
器以前,还应带上绝缘手套,用短路线将故障铝电解电容器的两极端接,还应单独进行放电。
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