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变压器怎样测试好坏
更新时间: 2020-10-29 00:00:00  

1、用万用表高阻档,两表笔分别接初、次级线圈的各一个出线头,指示应在数兆欧以上,无穷大为佳。

2、一般小功率的降压变压器,初级线圈细而多,因而容易断,次级则是粗而少,很少会断的。

3、初级电阻一般在几十到几百欧,功率越小,测得电阻越大。

4、181欧,正常,估计为4~5W的变压器。

5、次级电阻就小多了,应该在几欧到0.几欧。

关键词: 变压器 怎样 测试 好坏

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