电瓷避雷器Issue(6)：179-186,8.DOI:10.16188/j.isa.1003-8337.2023.06.021
近海台风区500kV防风偏复合绝缘子研制及工程应用
Development and Engineering Application of 500 kV Anti-Windage Yaw Composite Insulator in Coastal Typhoon Area
摘要
Abstract
As a type of non-synoptic and rotating wind,the typhoon frequently causes the windage yaw trip of tension tower jumper to 500 kV transmission line at coastal areas.A fixed anti-wind yaw compos-ite insulator with variable diameter structure for 500 kV tension tower jumper string is proposed for the first time.The technical parameters,structural type,material selection,connecting fitting and accesso-ries,manufacturing technology of the insulator are systematically analyzed.The stress load characteristics of the anti-wind yaw composite insulator are simulated by establishing a finite element model,and the mechanical and electrical performance tests are carried out,and the reliability of the composite insulator is proved.Considering the adverse factors of excessive load on the end of cross-arm caused by the anti-windage yaw composite insulator,the optimal layout of adding two support trusses in the middle of hang-ing angle steel is proposed to adjust the stress transmission path and enhance the anti-torsion ability of hanging angle steel.The research shows that the developed anti-wind yaw composite insulator has excel-lent anti-pollution flashover and anti-windage yaw performance,and can effectively solve the problem of jumper windage yaw flashover caused by typhoon in coastal areas.Relevant products have been applied in a 500 kV transmission line at the coastal area,and the operation is in good condition,which provides ref-erence and demonstration for the popularization and application of 500 kV anti-windage yaw composite insulator.关键词
500kV输电线路/防风偏/复合绝缘子/台风区Key words
500 kV transmission line/anti-windage yaw/composite insulator/typhoon area引用本文复制引用
徐福聪,林锐,田正波,林朝晖,陈俊,王家昕,翁兰溪..近海台风区500kV防风偏复合绝缘子研制及工程应用[J].电瓷避雷器,2023,(6):179-186,8.基金项目
国家自然科学基金面上项目(编号:51778072).Project supported by National Natural Science Foundation of China(No.51778072). （编号:51778072）
