一下雨总开关就跳闸,这是什么原因导致的?

2025-04-01 11:09:00
推荐回答(5个)
回答1:

普通漏电开关可以分为两类,电子式和电磁式。两者区别在于电子式的零序互感器电压要经过电子放大和比较,然后驱动分励脱扣线圈跳闸,电磁式的则无需经过电子电路直接驱动脱扣机构跳闸,这看似更简单,但实际上更难做好,也是电磁式漏电开关贵的原因。

打雷时会在线路引起浪涌电压,并引起不平衡电流,导致漏电开关零房互感器感应到剩余电流,由于电子式漏电开关处理电路对该干扰未能很好滤除,才会引起误动。

电动机起动电流是额定电流的4~7倍,那么短路电流是多少?雷电电流又应该是多少?到目前,全世界的发达国家对收集雷电的试验均未成功,日本对这方面的研究最超前,目前还没有获得成功的报道。其实国内目前的各种防雷接地措施只是起到缓解作用,并不能达到彻底保护。

回答2:

你的情况可以是总开关带有漏电保护所至,一下雨,单色条屏回路接地,两条电线电流不平衡,会因漏电保护动作使总开关跳闸,(这个动作电流是毫安级的,很灵敏)解决办法就是建议在每支路上均装一个漏电保护开关,总开关上装一个普通开关,哪个回路有问题停哪个支路,总开关只做短路保护及过载保护,这样就不会扩大停电面积了

回答3:

我知道,因为我有个这个经历:总开关会自动跳,开关推上去的话也自已下来,就推不上去。这是线路漏电。建议检查线路,不然时间长了会烧电器的。

回答4:

接线盒大都有防水,注意检查。过线做好防水。开关放入盒子保护。

回答5:

很明显,单色屏内部积水,造成短路或漏电。

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