该方法不受零序电流大小、线路补偿情况、谐波强弱等影响，具有较高的理论和实用价值。

The method is independent of zero-sequence current's value, inductance compensation situation and harmonics components, so it is effective and robust.

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在非线性电阻消谐方式下，正温度系数(PTC)热敏电阻和三次谐波滤波器可以较好地解决零序电压偏高的问题。

Positive temperature coefficient (PTC) thermistor and triple frequency harmonic filter can reduce zero sequence voltage when a nonlinear resistance is used to prevent ferroresonance.

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尤其是第三个谐波，这将导致零序电流急剧增加，从而增加了中性线的电流。

This is particularly the case for the third harmonic, which causes a sharp increase in the zero sequence current, and therefore increases the current in the neutral conductor.

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