通過電阻值判斷：單相電機(jī)的主副繞組的電阻值通常是不同的。可以使用萬用表或電阻表等工具來測量單相電機(jī)的主副繞組的電阻值，一般情況下，主繞組的電阻值要遠(yuǎn)遠(yuǎn)低于副繞組的電阻值。
通過端子標(biāo)識判斷：單相電機(jī)的主副繞組的接線端子通常是不同的?？梢圆榭磫蜗嚯姍C(jī)的接線端子標(biāo)識，一般情況下，主繞組的接線端子標(biāo)識為P1和P2，副繞組的接線端子標(biāo)識為S1和S2。
通過鐵芯結(jié)構(gòu)判斷：單相電機(jī)的主副繞組通常繞制在不同的鐵芯上，可以通過觀察單相電機(jī)的鐵芯結(jié)構(gòu)來判斷主副繞組。
需要注意的是，在判斷單相電機(jī)的主副繞組時，應(yīng)特別注意電路的安全，避免產(chǎn)生電擊或火災(zāi)等危險。如果不確定自己的能力，建議請專業(yè)人士進(jìn)行檢查和維修。
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CUTLER HAMMER KT3400T 400 AMP A Thermal Trip Unit 400A
