电网10kV系统中性点接地方式改造探讨

Discussion on Transformation of neutral point grounding mode of 10kV power grid system

随着城市10kV配电网系统电缆的使用增加,使得电容电流飞速增长,最终导致10kV配电网原有的中性点接地方式越来越不能满足要求,本文将依托某110kV变电站10kV配电网接地系统的改造,论述接地改造方案,并对接地方式改造后的影响进行分析,为今后的配网改造设计提供一定的参考。

With the increasing use of cables in urban 10 kV distribution network system,the capacitive current increases rapidly,which eventually leads to the original neutral grounding mode of 10 kV distribution network can not meet the requirements.Relying on the transformation of 10 kV distribution network grounding system of a 110 kV substation,this paper will discuss the transformation scheme of grounding transformation,and analyze the influence of the transformation of grounding mode,It provides a certain reference value for the future distribution network transformation design.