摘要
针对呼伦贝尔地区500 kV架空输电线路发生次档距振荡问题进行分析,确定原因是由于导线间隔棒次档距设计值偏大,在风作用下导线产生次档距振荡。根据现场实际情况,对线夹回转式间隔棒采取不等距、不对称的布置方式,控制最大次档距不大于50 m,端次档距不大于25 m,平均次档距为45 m左右。调整安装后导线次档距振荡现象消失,效果较好。
Make analysis on the causes of subspan oscillations occurred at 500 kV overhead transmission line in Hulun Buir. The cause is the design value of conductor spacer subspan is larger, which leads to conductor subspan oscillation by wind. Based on the actual condition, the clip rotary spacer should be allocated in unequally and unsymmetrical way. The maximum subspan should be controled within 50 m, and the end subspan within 25 m. The average subspan is around 45 m. The subspan oscillations disappeared after the adjustment to the conductor subspan.
出处
《内蒙古电力技术》
2013年第1期43-45,共3页
Inner Mongolia Electric Power
