配电网小电阻接地对可靠性影响分析  

Analysis of the Influence of Small Resistance Grounding on Distribution Network Reliability

作　　者：田家豪 姚林朋[2] TIAN Jiahao;YAO Linpeng(Zunyi Power Supply Bureau of Guizhou Power Grid,Zunyi 563099,China;Department of Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]贵州电网有限责任公司遵义供电局,贵州遵义563099 [2]上海交通大学电气工程系,上海200240

出　　处：《电工技术》2022年第23期121-122,126,共3页Electric Engineering

摘　　要：针对某地区正在开展的配电网由中性点经消弧线圈接地改造为小电阻接地工程,选取待改造13座变电站和改造后8座变电站进行分析,比对待改造、改造后变电站之间故障数据和改造后变电站在改造前后的故障数据,得到配电网中性点小电阻接地对于配电网可靠性的影响程度。The project of transforming the distribution network from neutral point to small resistance grounding through arc suppression coil is being carried out in a certain area.Based on this project,13 substations to be reconstructed and 8 substations after reconstruction are selected for analysis.Compared with the fault data between substations to be reconstructed and after transformation,and the fault data before and after transformation of substations after transformation,the influence of small resistance grounding of distribution network neutral point on the reliability of distribution network is obtained.

关 键 词：配电网 小电阻接地 可靠性 故障 

分 类 号：TM769[电气工程—电力系统及自动化]