配网励磁涌流引起线路保护误动作的分析及处理  

Analysis and Handling of Line Protection Maloperations Caused by Distribution Network Excitation Inrush Current

作　　者：刘嘉宝 赵彬 许鸣吉 LIU Jiabao;ZHAO Bin;XU Mingji(State Grid Shibei Power Supply Company,SMEPC,Shanghai 200072,China)

机构地区：[1]国网上海市电力公司市北供电公司,上海200072

出　　处：《电力与能源》2024年第4期450-454,共5页Power & Energy

摘　　要：针对近年来在对线路恢复供电的过程中,偶尔会发生配电网励磁涌流引起线路保护误动作的问题,对历年来励磁涌流引起的事故进行了统计总结,分析了发生励磁涌流的基本原理和特点,得到了励磁涌流的辨识判断方法,并提出了防止配网励磁涌流引起线路保护误动作的事故处理流程和解决措施。In recent years,occasional instances of line protection maloperation caused by distribution network ex citation inrush currents during the process of restoring power supply have been observed.This paper summarizes and analyzes accidents caused by excitation inrush currents over the years,explores the fundamental principles and characteristics of excitation inrush,identifies methods for recognizing and judging excitation inrush,and proposes accident handling procedures and solutions to prevent line protection maloperation caused by distribution network excitation inrush currents.

关 键 词：配电网 励磁涌流 保护误动作 

分 类 号：TM773[电气工程—电力系统及自动化]