110kV变电站小电流接地检测监控系统研究  

Study on small current grounding detection and monitoring system in 110kV substation

作　　者：王晓[1] 

机构地区：[1]江苏苏钢集团,江苏苏州215151

出　　处：《无线互联科技》2018年第6期20-21,共2页Wireless Internet Technology

摘　　要：文章应用"零序谐波电流大小和方向综合判断"原理制成小电流接地检测装置并入监控系统中,实现对小电流接地故障进行高效、科学的分析判断和处理,较好地解决了小电流接地系统单相接地检测的问题。苏钢110 k V变电站监控系统小电流接地监测高速、准确、可靠,有效解决了以往小电流接地故障的查找处理很难的问题,改变了原来逐一分路切除查找,缩短了故障的查找时间,提高了苏钢电网系统的安全可靠性。This paper based on the principle of ＂zero sequence harmonic current size and direction comprehensive judgement＂, a small current grounding detection device is incorporated into the monitoring system to achieve efficient, scientific analysis, judgement and treatment for the local fault of small current. It solves the problem of single phase grounding detection in the small current grounding system. High speed monitoring system, 110 kV substation Suzhou Steel Group current grounding monitoring is accurate, reliable, effectively solve the small current grounding fault search to find difficult problem, change the original one by one shunt resection search, shorten the troubleshooting time and improve safety and reliability of the electric network Suzhou Steel Group.

关 键 词：小电流接地 零序谐波电流 检测监控系统 

分 类 号：TM63[电气工程—电力系统及自动化] TM862