客运专线10kV电力贯通系统中性点接地方式探讨

Discussion on Neutral Point Earth Mode of 10 kV Power Through Line System for Passenger Dedicated Railway Line

介绍了10kV电力系统中性点几种不同的接地方式,分析了中性点经电阻接地方式对降低工频过电压、限制弧光接地过电压及消除谐振过电压均有良好效果,建议我国客运专线铁路10kV电力贯通系统采用中性点经电阻接地方式。

This paper introduces different earthing methods for neutral point of 10 kV power system, and discusses the studies on the influence of the neutral grounding method by the use of resistance on temporary overvoltage, arcing grounding overvoltage, and resonance overvoltage, and considers that it is valid to use this grounding method in Dedicated passenger line 10 kV power system of our country.