边相加单跳线串的跳线计算分析  

Analysis and Calculation of Jumping Line of Single Jumping String Added at Outside Phase

作　　者：程思勇[1] 

机构地区：[1]广西电力工业勘察设计研究院,南宁530023

出　　处：《广西电力》2013年第1期83-86,共4页Guangxi Electric Power

摘　　要：边相加单跳线串的跳线计算对耐张塔塔头尺寸设计有较为重要的影响,在塔身尺寸确定的情况下,存在一个最短的横担长度。通过建立塔头三维空间模型,计算三维中跳线对各接地部位的最短距离来确定最短横担长度,并分析跳线串挂点与耐张串挂点的水平距离、前后侧耐张串挂点宽度、跳线串加挂重锤数量等因素对最短横担长度的影响。分析结果表明:增大耐张串挂点与跳线串挂点的距离可明显缩小最小横担长度;增加前后侧耐张串挂点宽度能较为有效地缩小横担长度,增加重锤片数对缩小横担长度作用不明显。The calculation of jumping line of single jumping string added at outside phase has important influence to the tower head size of tension tower. There exists a minimum cross arm length under a given tower body size. A tower head 3D model is built to determine the minimum cross arm length by calculating the minimum distance between jumping line and ground point. The model is also used to analyze influences of the distance between attaching points of jumping string and tension string, the width between attaching points of front and rear tension string, and the number of counter weight to the minimum cross arm length. Results show that the minimum cross arm length will be decreased effectively by increasing distance between attaching points of jumping string and tension string, and be decreased effectively by increasing the width between attaching points of front and rear tension string, but be not affected by adding the number of counter weight.

关 键 词：跳线串 最小横担长度 挂点 重锤 

分 类 号：TM753.3[电气工程—电力系统及自动化]