摘要
根据对500 kV输电线路塔型规划的前期研究,结合三峡荆州—益阳Ⅱ回500 kV高压输电线路工程地形、地貌等实际情况,对导线排列方式,绝缘子串的布置形式等进行了讨论。应用概率统计等方法,通过统计类似工程及本工程直线杆塔水平档距、垂直档距、KV的概率分布规律,规划出较为符合本工程的直线塔型设计条件,提高了杆塔使用条件的利用系数,以求取得较好的经济效益。同时对直线转角塔、耐张转角塔进行了规划。最后,综合线路走廊、铁塔耗钢量及相关电气特性等技术经济指标,推荐直线塔采用3"V"串型猫头塔。
Based on preliminary studies of 500 kV transmission tower type planning and combined with actual terrain and landscape of Jingzhou- Yiyang 500 kV double circuit transmission line project, the arrangement and layout of the transmission line and insulator strings are discussed. Using probability and statistics methods and through statistic of probability distributions of tower horizontal span L.. vertical span Lv and swing angle coefficient, Kv, of current and similar projects, optimum suspension tower design conditions for current project are obtained, improving utilization coefficient. Suspension and strain type angle towers are also planned. Considering line corridors, tower steel consumption and electrical performances, it is suggested that cat-head tower with three V-shaped insulator strings should be used for suspension towers.
出处
《电力建设》
2007年第12期47-50,共4页
Electric Power Construction
关键词
500KV输电线路
杆塔规划
水平档距
垂直档距
摇摆角系数
500 kV transmission line
tower planning
horizontal span
vertical span
swing angle coefficient Kv
