基于稳态零序电流分布的单相接地故障区间定位技术研究  

Research on Single Phase Ground Interval Location Technology Based on Steady-State Zero Sequence Current Distribution

作　　者：苏添易 SU Tianyi(Nanyang Technological University,639798,Singapore)

机构地区：[1]南洋理工大学,新加坡639798

出　　处：《电工技术》2023年第13期103-105,共3页Electric Engineering

摘　　要：针对单相接地故障检测中的故障区间定位问题,提出一种基于稳态零序电流分布的单相接地故障区间定位技术。通过详细分析发生单相接地故障前后稳态零序电流的分布特性,得出基于稳态零序电流特征的故障判据,并基于故障判据给出详细判断流程。该定位技术可有效补充现有方法的不足,在不增加费用的基础上,细化故障区间,进一步缩短故障排查时间。For the fault interval location problem in single-phase ground fault detection,a single-phase ground fault interval location technique based on steady-state zero-sequence current distribution is proposed.Through detailed analysis of the distribution characteristics of the steady-state zero sequence current before and after the occurrence of a single-phase ground fault,a fault criterion based on the steady-state zero sequence current characteristics is derived,and a detailed judgment process is given based on the fault criterion.This positioning technique can effectively complement existing methods,refine fault intervals and further reduce troubleshooting time without increasing costs.

关 键 词：单相接地故障 稳态零序电流 消弧线圈接地 

分 类 号：TM713[电气工程—电力系统及自动化]