交流电220v的地线与直流电220V的区别和联系?

2025-03-15 07:42:08
推荐回答(4个)
回答1:

交流电220v的地线是变压器的星型连接组的中点,是零线。直流电220V的地线是负极电源线,

回答2:

交流电220伏是没有正负极的,直流电220伏是有正负极之分的。交流电属于正弦交流电,直流电是属于恒流电。经过变压器可以使交流变直流、直流变交流。~220v/—220v

回答3:

交流和直流的地线是一样的,都是起保护作用。注意这里说的地线不是交流电的零线以及直流电的负极!

回答4:

交流电220v没有正负极,直流电220V则有,两者电压相同

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