三角形连接中有三次谐波相电动势,但3次谐波线电动势为零?三角形中相不是等于线吗? 知乎 Template




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tomski三角形连接中有三次谐波相电动势,但3次谐波线电动势为零?三角形中相不是等于线吗? 知乎 coloring