基于现场接地试验的配电网单相接地故障定位分析  

Analysis of Single-phase Grounding Fault Location in Distribution Network Based on Field Grounding Test

作　　者：徐诚[1,2] 梁仕斌 田庆生 武历忠 

机构地区：[1]华北电力大学(保定),河北保定071000 [2]华北电力大学云南电网公司研究生工作站,昆明650217 [3]云南电网有限责任公司电力科学研究院,昆明650217

出　　处：《云南电力技术》2016年第5期92-95,共4页Yunnan Electric Power

摘　　要：为解决3-66 kV的配电网均采用中性点非直接接地方式，发生单相接地时故障电流很小，大部分的定位方法不能达到准确定位目的问题，通过对10 kV线路进行现场接地试验并研究其电参量特点，原理上分析暂态法和电阻投切法两种定位方法的局限性。In our country, most of the kV 3-66 distribution network use neutral point non direct grounding method, because it is very small in the occurrence of single phase ground fault current, the majority of the positioning method can not achieve the purpose of accurate positioning. In this paper, the 10 kV line is tested and studied in the ifeld of artiifcial grounding test and study of the characteristics of the electric parameters, and the principle of the transient method and the resistance of the two kinds of positioning method.

关 键 词：配电网 现场人工接地试验 

分 类 号：TM862[电气工程—高电压与绝缘技术] TM75