江西省输电线路现场污秽度测量与防污闪研究  

The research of SPS measurement and flashover prevention for transmission lines of Jiangxi Province

作　　者：王华云[1] 万军彪[1] 陈智[1] 马剑辉 熊鹏 范欣来 

机构地区：[1]江西省电力科学研究院,江西南昌330096 [2]武汉康普常青软件技术有限公司,湖北武汉430074

出　　处：《江西电力》2009年第1期1-3,共3页Jiangxi Electric Power

摘　　要：近年来的电网事故调查表明,导致我国电网大面积停电的首要原因是污闪事故。为进一步预防、减少污闪事故的发生,保障江西电网的安全、可靠运行,江西省电力公司于2008年开展了输电线路污秽在线监测网的研究。本文首先介绍了绝缘子污闪的机理和污闪电压模型,并根据项目实际进展情况,分析了项目数据对比和污闪试验情况。通过对试验数据的分析,提出了XP-70普通盘型悬式绝缘子的污闪电压与等值盐密和灰密的关系和已建线路绝缘子污闪预警流程,并将在下面的工作中继续研究不同型式绝缘子交流闪络电压与等值盐密和灰密的关系,以及利用软件实现污闪事故原因分析和评估污闪对电网安全影响等智能辅助决策功能。The investigation of power grid accidents shows that the flashover pollution of insulator strings is one of the most serious natural disasters. In order to prevent and reduce flashover pollution incidents and to protect the security of power grids in Jiangxi Province, the Jiangxi Power Company launched a transmission network line of online filthy research in 2008. This paper introduced the mechanism of the insulator flashover based on the tests results and the effects of both ESDD and NSDD on the AC flashover voltage of the polluted XP-70 insulators. The paper proposed to build a warning process of sewage insulator flash line. Moreover, we should continue to study the relationship among different types of exchanges flashover voltage insulators with the equivalent of salt and ash during the following work. It also shows the use of software to bring about the decision-making function of analyzing the reason of the flashover accident and accessing the implication of flashover to power grid.

关 键 词：污闪 绝缘子 等值盐密 灰密 

分 类 号：TM855[电气工程—高电压与绝缘技术]