未知题型

电容器的合闸涌流其实是高次谐波电流（）

A.正确
B．错误

【参考答案】

B．错误电容器的合闸涌流主要是由于电容器在合闸瞬间相当于短路，其两端电压不能突变，因此会产生一个很大的瞬时电流，这个电流......

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