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
刘嘉宝 1赵彬 1许鸣吉1
作者信息
- 1. 国网上海市电力公司市北供电公司,上海 200072
- 折叠
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.
Abstract
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Key words
distribution network/excitation inrush current/protection maloperation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据