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三相电表ABC三相灯AB灯亮C灯不亮是什么原因

2025-03-31 00:42:01

推荐回答（2个）

回答1：

你可以检查下C相是否确实失压。不亮有可能是以下原因：
1是C相真实没有电压输入；
2C相有电压输入而指示灯坏，因而不亮；
3表坏不能正常测定C相电压。

回答2：

ABC三个灯分指A相电 B相电 C相电。如C灯不亮着C相有无电。

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