摘要
外加诊断信号法检测中低压配电网单相接地故障是一种行之有效的故障选线和定位方法。本文分析了外加诊断信号检测中低压配电网单相接地故障的基本原理 ,对外加诊断信号源的技术要求及其加入故障系统的方法作了探讨 ,介绍了诊断信号的探测方法 。
Method of additional diagnostic signal is valid for faulty line selection and fault point location in MV/LV distribution systems.In the paper,the principle based on additional diagnostic signal is analyzed.Technical requirements for signal generator and method coupled to the primary system are discussed.How to detect the signal is presented.And the method is evaluated from the influence of fault resistance and earth capacitance on the accuracy of fault line selection and fault point location.
出处
《济南大学学报（自然科学版）》
CAS
2004年第2期164-168,共5页
Journal of University of Jinan(Science and Technology)
关键词
单相接地故障
选线
定位
诊断信号
single line-to-ground fault
fault line selection
fault point location
diagnostic signal
