110kV贵同大线路不明闪络原因分析  

Unidentified Reason Analysis of 110kV Guide-Tongde-Dawu Transmission Line Flashover

作　　者：袁玉龙[1] 张仲秋[1] 朱小初 佘兆年 

机构地区：[1]青海电力试验研究所,青海西宁810008 [2]青海省海南州电力局,青海共和813000

出　　处：《青海电力》2005年第4期23-26,共4页Qinghai Electric Power

摘　　要：110 kV贵-同-大线路于1998年12月投入运行以来,多次发生跳闸事故,严重影响安全运行。文章对贵-同-大线路跳闸原因从现场调查、试验分析等多方面进行了论述,通过分析,得出了各工况下的电气间隙值、最小悬垂绝缘子串绝缘长度、最小悬垂串全长及片数的技术数据,对不同海拔高度线路间隙值及绝缘长度进行修正和外延。并提出解决措施。Since 110kV Guide-Tongde-Dawu transmission line has been put into operation in December of 1998, it took place several times trip accident and this seriously influenced safe operation. The paper makes an analysis on the reason of trip from several aspects like field investigation, test and analysis etc. Therefore gives the clearance value, insulation length of the minimum suspension insulator string, and the pieces and length of the minimum suspension string,as well as makes some amendment and exteonsion for the clearance values and insulation length of different elevation transmission lines. Also the paper proposes the main reason of trip accident and the relevant solving measures.

关 键 词：绝缘子 闪络 间隙 风偏角 

分 类 号：TM755[电气工程—电力系统及自动化]