高寒地区输电线路导线振动断股原因分析及治理  

Cause Analysis of Transmission Line Vibration Breakage in Alpine Region and Its Treatment

作　　者：王宝成 

机构地区：[1]国网内蒙古东部电力有限公司检修分公司呼伦贝尔运维分部,内蒙古呼伦贝尔021008

出　　处：《内蒙古电力技术》2015年第4期52-54,63,共4页Inner Mongolia Electric Power

摘　　要：内蒙古呼伦贝尔地区属高寒地区,输电线路运行环境恶劣,导线振动严重,部分输电线路导线发生断股、金具损坏和塔材螺栓疲劳断裂事故。针对以上事故进行原因分析,认为呼伦贝尔地区输电线路导地线断股原因为防振锤安装不满足运行要求,并分析了输电线路冬季低温运行时的导线应力、风速与风向、悬挂点高度等因素对导(地)线振动的影响。提出了在设计改造阶段增加防振锤安装数量的改造措施,避免了导线断股、断线事故的发生。Hulun Buir area belongs to the alpine region,the running condition oftransmission line was tough,which resulted the power transmission line vibrated heavily,and part of transmission line breakage,the fittings damage and tower bolt fatigue fracture.The breakage cause was that shockproof hammer installation could not meet therequirements of operation,and make an analysis of the influence to the ground vibrationfrom the wire force,wind speed and direction during operation in low temperature inwinter,and the suspension height.In the design stage to increase the number of theinstallation of the anti-vibration hammer was put forward,which could avoid the occurrenceof wire breakage.

关 键 词：高寒地区 输电线路 导线振动 导线断股 导线应力 防振锤 

分 类 号：TM752[电气工程—电力系统及自动化]