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51问答网 > 电机的首尾端怎样判断?

电机的首尾端怎样判断?

2025-03-14 08:32:48

推荐回答（3个）

回答1：

三相电机怎么找出首尾端？干维修的电工一定要学会，早晚都能用上

回答2：

回答3：

首先用万用表的电阻档区分出三组绕组，再将万用表调到最小直流电压档，两根表笔分别接同一绕组的两根引线。在剩下的两个绕组中任选一组，接一节电池(瞬间触碰)，看万用表指针的摆动方向(记住)，将万用表换到另外一组绕组上，重复上述过程。
两次过程中，万用表指针的摆动方向相同的，同一根表笔(红或黑)所接的是两个绕组的相同端。
将电池换的另一绕组，用相同的方法既可判断出第三个绕组的引出线。

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