摘要
本文针对500kV转弯塔处易出现局部可听噪声的情况,采用有限元法,对500kV输电杆塔跳线悬垂绝缘子串及其下端金具上的电场分布进行了建模计算。重点比较了在金具两侧跳线四种不同夹角的情况下,绝缘子串及金具上的电场分布,总结了跳线夹角变化对电场分布的影响。并根据比较结果指出在满足绝缘要求的前提下,减小金具两侧跳线夹角可以比较明显的改善电场分布,减小转弯塔处可能出现的局部可听噪声。
The electric field distribution on 500kV power transmission tower suspension insulator string and metal fittings is calculated adopting the finite element method (FEM) considering the audible noise on such towers. The impact of the angle between the jumping conductors on the electric field distribution is analyzed. Based on the comparison of the electric field distributions under cases with different angles between jumping conductors, it is pointed out that the electric field distribution will be significan...
出处
《电气技术》
2009年第5期9-12,共4页
Electrical Engineering
关键词
电场计算
有限元法
悬垂绝缘子串
金具
跳线夹角
electric field calculation
inite element method
suspension insulator string
metal fittings
500kV transmission line
