1、用萬用表高阻檔，兩表筆分别接初、次級線圈的各一個出線頭，指示應在數兆歐以上，無窮大為佳。
2、一般小功率的降壓變壓器，初級線圈細而多，因而容易斷，次級則是粗而少，很少會斷的。
3、初級電阻一般在幾十到幾百歐，功率越小，測得電阻越大。
4、181歐，正常，估計為4~5W的變壓器。
5、次級電阻就小多了，應該在幾歐到0.幾歐。
變壓器怎樣測試好壞
更新时间：2024-11-11 05:00:19
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