山东电网35 kV系统中性点小电阻接地方式分析  

Analysis of Low Resistance Neutral Grounding Mode for 35 kV System in Shandong Power Grid

作　　者：李凯 康世崴 白茂金[2] LI Kai;KANG Shiwei;BAI Maojin(State Nuclear Electric Power Planning Design and Research Institute Co.,Ltd.,Beijing 100095,China;Shandong Electric Power Engineering Consulting Institute Co.,Ltd.,Jinan 250013,China)

机构地区：[1]国核电力规划设计研究院有限公司,北京100095 [2]山东电力工程咨询院有限公司,山东济南250013

出　　处：《国网技术学院学报》2020年第5期10-13,共4页Journal of State Grid Technology College

摘　　要：介绍了中性点不接地、经消弧线圈接地、经小电阻接地的演化过程,分析了不同接地方式的技术特点。根据山东电网35 kV系统运行要求及发展规划,分析采用小电阻接地方式的必要性和可行性,并用实际案例验证小电阻接地方式的有效性。The evolution process of neutral point ungrounded,neutral point grounded through arc suppression coil and neutral point grounded through low resistance is introduced,and the technical characteristics of different grounding modes are analyzed.According to the operation requirements and development plan of 35 kV system in Shandong power grid,the necessity and feasibility of adopting low resistance grounding mode are analyzed.The effectiveness of low resistance grounding mode is verified by a practical case.

关 键 词：配电网 中性点接地方式 小电阻接地 

分 类 号：TM732[电气工程—电力系统及自动化]