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116问答网 > 为什么由于三相变压器三次谐波电流分量同相位则无法流通？而基波三项有相位差就可以流通？

为什么由于三相变压器三次谐波电流分量同相位则无法流通？而基波三项有相位差就可以流通？

2025-03-16 06:08:22

推荐回答（1个）

回答1：

三次谐波：A: Usin3wt，B：Usin3（wt-120）=Usin3wt，C:Usin3(wt
-240)=Usin3wt。三相同相位，对于△连接的绕组，三次谐波只能在△内部形成环流，Y连接的绕组，其线电压为相电压之差，三次谐波电压相同所以被抵消。

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