...保护 0 引言 我国6~66 kV 中压电网普遍采用中性点非有效 接地方式，具体包括3种：中性点不接地系统(neutral ungrounded system，NUS)；中性点经消弧线圈接地， 即谐振接地系统(neutral resonant-grounded sys...
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Compared with neutral ungrounded power system, ferroresonance overvoltage occurred in neutral grounded power system has more new features, and the research about it is much.
相对于中性点非直接接地系统而言，发生在中性点直接接地系统中的铁磁谐振过电压有着许多新的特点，而且对它的研究相对较少。
In the neutral ungrounded power system, ferroresonance over-voltage due to electromagnetic transformer takes place frequently.
在中性点不接地电网中，频繁发生由电磁式电压互感器引起的铁磁谐振现象。
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