配电网单相接地故障零序全电流分析  

ZERO-SEQUENCE FULL CURRENT ANALYSIS FOR SINGLE-PHASE GROUNDING FAULT OF DISTRIBUTION NETWORK

作　　者：王德江[1] 王建立[1] 王艳秋[1] 

机构地区：[1]辽宁工学院信息科学与工程系,辽宁锦州121001

出　　处：《高压电器》2003年第3期29-30,共2页High Voltage Apparatus

基　　金：辽宁省教育厅高等教育学校科学研究项目(10221062)

摘　　要：通过对中性点不接地配电网单相接地故障时零序全电流的分析,得出了利用零序全电流的大小和方向进行故障选线的新方法。与传统的故障选线相比较,选线信号容易获得,并且是接地电流的全部信息。这对故障线路的识别、提高选线的准确率以及微机选线装置的开发是有利的。By analyzing the zero-sequence full current for single-phase grounding fault in isolated neutral distribution network, a new approach to determine the faulty transmission line is obtained. Compared with the conventional method based on the zero-sequence elementary frequency faulty current, it is available conveniently, being beneficial to the identification of faulty line and the development of micro-computer-based device of faulty line identification.

关 键 词：配电网 单相接地故障 零序全电流 零序等效电路 微机选线装置 

分 类 号：TM862[电气工程—高电压与绝缘技术]