220kV线路双回单π接塔的设计与应用

Design and Application of 220 kV Double Circuit Single π Connected Tower

针对常规双回220 kV架空线路的单订接线方案进行改进,设计一种双回单π接塔,使双回单π接线仅在一基铁塔上完成;确定了该型塔的使用条件、横担布置和金具连接方式;通过工程实例,对其工程造价、施工难易程度进行对比分析,证明采用该型塔的π接方案相比常规π接方案,具有更好的经济和技术特性。

To improve the conventional double circuit 220 kV overhead line Single π connection,made sure the connection that could be completed on one tower,a double circuit single π Connected tower was designed.The conditions of use,arrangement of the cross arms and fittings connection mode were determined.Comparative analysis through a project case,proving that using this method compared with the conventional scheme π connection method which has better economic and technical characteristics.