冰箱压缩机PTC启动器的阻值为零是咋回事了,是坏了吗?请老师傅回答

2024-12-02 17:00:24
推荐回答(4个)
回答1:

PTC是正温度系数热敏电阻,它的阻值是随着温度而变化的,温度越高,阻值越大。但最小的阻值也在20欧左右,正常状态不可能为零。出现这个情况可能是击穿了。启动器是可以卸开的,打开后看看就明白了。再说,这个原件几元钱一个,直接换了就可以了。

回答2:

PTC在常温时电阻值是小的,通电发热后阻值才变大

回答3:

为什么不能这样呢?如果启动器坏了,压缩机不启动,运行电流增高,压缩机当然就会异常发热。虽然有热保护,但是时间长了,一定还是会的烫手,甚至烧毁电机。

回答4:

我想知道您提问的结果,我今天也遇到这情况了,常温下阻值为0,片也不破。

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