电测与仪表2025，Vol.62Issue(10)：96-105,10.DOI:10.19753/j.issn1001-1390.2025.10.011
导线触树单相接地故障过渡电阻时变特性分析及参数影响
Time-varying characteristic analysis and parameter influence of transition resistance of tree-contact single-phase-to-ground fault
摘要
Abstract
Tree-contact single-phase-to-ground fault(TSF)may ignite trees and cause fire,threatening the life and property of people.However,the fault characteristics of TSF are weak and difficult to identify,so it is urgent to further study the fault mechanism and characteristics.In this paper,TSF is constructed based on 10 kV analog cir-cuit experiment platform.The experimental results show that the development process of TSF can be roughly divided into four stages.Fault point current waveform has different characteristics in different stages.The transition resist-ance and the changing rate of transition resistance of TSF gradually decreases with the development of fault.The length,thickness and species of the tree are all able to affect the magnitude and the changing rate of the transition resistance of TSF.关键词
导线触树接地故障/过渡电阻/电阻变化率Key words
tree-contact single-phase-to-ground fault/transition resistance/changing rate of resistance分类
信息技术与安全科学引用本文复制引用
宁鑫,张华,尚豪,宁文军..导线触树单相接地故障过渡电阻时变特性分析及参数影响[J].电测与仪表,2025,62(10):96-105,10.基金项目
国网四川省电力有限公司科技项目(521997220001) （521997220001）
