采用丁字横担解决导线间距偏小的实践  

Practice of Use T Cross Arm to Increase the Distance of Lines

作　　者：周虹霞 梁海生[2] 

机构地区：[1]上海电力设计院有限公司,上海200025 [2]上海市电力公司电力经济技术研究院,上海200080

出　　处：《电力与能源》2012年第6期587-589,共3页Power & Energy

摘　　要：随着风力发电规模的不断发展,在风电场中同塔多回路集电线路的应用越来越广泛,T接线路的使用也日益增多。常用的单回路T接一般导线间距均能满足设计要求,而采用多回路T接时,由于导线布置方式的改变,将导致不同回路导线的间距不能满足技术规范的要求。通过对"增加转换铁塔、伸长导线横担及增大导线水平间距、增加丁字横担"三种方案的可行性和经济性的对比分析,尤其是对多个风力发电工程的集电线路采用多回路T接时进行优化设计的实践总结,证实了风电场中同塔多回路集电线路遇到双回路由鼓型排列T接至同塔四回路主线时,可以采用丁字横担方案解决导线间距偏小的难题。With the development of the scale of wind power generation,more and more tower are used which has multicircuit transmission lines on it, the same to T connection line. In general, the minimum distance of lines are satisfactory when T connection line is single line, but unsatisfactory in multi-line for the change of the conductor spatial arrangement. There are three solutions round this： add a converted tower,extend the cross arm,add T cross arm. Through the contrast of the feasibility and the economy of these solutions, it is proof that the minimum distance of lines can be satisfactory when use the solution of add T cross arm,and when the T connection line is double line.

关 键 词：风电场 T接线路 导线间距 丁字横担 

分 类 号：TM752[电气工程—电力系统及自动化]