220kV垂直排列双分裂导线粘连原因及影响因素现场试验研究  

Research on Field Test on Reasons and Influence Factors for Conglutination of 220kV Vertically Arranged Double Bundled Conductor

作　　者：王锐 张若林[2] 彭向阳 周华敏 杨晓东 

机构地区：[1]广东电网有限责任公司电力科学研究院,广东广州510080 [2]华北电力大学,北京102206 [3]广东电网有限责任公司,广东广州510060

出　　处：《广东电力》2015年第4期106-111,共6页Guangdong Electric Power

摘　　要：针对近年广东电网多条220 kV架空输电线路出现垂直排列双分裂导线粘连的问题,通过开展导线粘连现场试验,研究分析垂直排列双分裂导线粘连的原因及影响因素。选取不同子导线初始间距、档距及导线使用张力的观测档,在不同运行电流的情况下,测量子导线间距值,记录粘连前后导线温度及电晕图片。试验结果表明:在同样的运行电流下,双分裂子导线发生粘连主要受初始间距值、档距和导线使用张力的影响,导线粘连后出现一定温升,并发出明显的机械振动噪声。为防止导线粘连,针对设计、施工和运行各阶段,提出了使用间隔棒,调理下子导线弧垂等技术措施。In allusion to conglutination of vertically arranged double bundled conductors of several 220 kV overhead transmis-sion lines in Guangdong power grid which may cause great influence on safe and reliable operation of the power grid,this pa-per studies and analyzes reasons and influence factors for conglutination by developing field test on conglutination of the con-ductor. Initial intervals,spans of different sub-conductors and observation files of working strength were selected and under different running currents,values of intervals were measured,meanwhile,temperature of conductors and pictures of corona before and after the conglutination were recorded. Test results indicate that under the same running currents,the congluti-nation of double bundled sub-conductors were mainly affected by initial intervals,spans and working strength,a certain de-gree of temperature rise occurs after the conglutination and obvious noise of mechanical oscillation appears. In order to pre-vent conglutination,technical measures were proposed aiming at different design,construction and operating stages.

关 键 词：输电线路 双分裂导线 垂直排列 导线粘连 子导线间距 现场试验 

分 类 号：TM755[电气工程—电力系统及自动化]