空气开关跳闸后为什么不能马上合闸

2025-03-15 19:09:25
推荐回答(3个)
回答1:

空气开关过负荷跳闸是不能马上合闸的,你也合不上。因为过负荷跳闸的动作元件为双金属片等热敏元件,电流大则发热量大,元件变形大,推动跳闸机构跳闸,在温度降下来之前是无法合闸的。另外,在过电流因素没排除之前,马上合闸,会造成重新跳闸,不安全。
短路跳闸一般为电磁感应动作跳闸,从理论上讲是可以马上合闸的。但这时短路故障还没排除,合闸还会重新跳闸,危险性大。
有的空气开关配有失压脱扣线圈的,电源失压(或该线圈失压)时触动动作机构跳闸,如线圈电源马上恢复了,是可以马上合闸的;否则合不上。

回答2:

若马上合起来 很可能对家里其他的电器造成一定伤害 诸如电脑 电视机之类的 对电流很敏感
再者 要是短路的电器还没拔下插头 很可能会电到你 除非你家用的是继电器 望采纳

回答3:

把电饭煲插头拔掉,试看看能不能送上去,能的话就是电饭煲短路,不能的话就有可能是空开坏掉,或者其他地方短路。

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