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eeworld.com.cn
2 天
如何用万用表排查接触器无法吸合
如何排查电路故障?今天小编就以自锁电路为例演示一下如何判断电路,首先这是自锁电路,现在按下启动按钮接触器不吸合。 第一:首先测量电压,万用表打到交流电压档,注意表笔的位置,测量电源,确定有电之后,我们再测量其他的,因为电路没有电也是 ...
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Gold hits all-time high
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