6kV厂用电系统单相接地故障处理方法的改进  

Improvement on treatment of single-phase earth faults in 6 kV station service system

作　　者：胡言文[1] 

机构地区：[1]广东红海湾发电有限公司,广东汕尾516623

出　　处：《广东电力》2005年第4期69-71,共3页Guangdong Electric Power

摘　　要：针对原6 kV厂用电系统发生单相接地故障时处理方法存在的弊端, 简要介绍了KD XH型智能化快速消弧选线系统的结构原理及使用特点, 通过在韶关发电厂9 号机组的试验情况, 证明了该系统为查找、处理6kV厂用电系统单相接地故障提供了更安全、更迅捷的方法。KD-XH intelligent fast arc-suppression and ground faulted line detection system has been used to counteract the disadvantages in the original treating method for single-phase earth faults in 6 kV station service system for Unit 9 in Shaoguan Power Plant. The structure,theory and features of the KD-XH system are briefly described in this paper.Test results of the said system show that it provides a safer and faster method for detecting and handling single-phase earth faults in 6 kV station service system.

关 键 词：发电厂 厂用电系统 单相接地故障 消弧线圈 小电流接地选线 

分 类 号：TM623.7[电气工程—电力系统及自动化]