污秽覆冰绝缘子动态闪络特性分析
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

TM216 TM852

基金项目:

国家自然科学基金( 51407120) ; 辽宁省教育厅一般项目( LGD2016029)


Analysis of dynamic flashover characteristics of polluted iced insulators
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为研究在污秽与覆冰共存条件下的绝缘子动态闪络特性,本文基于FXBW4-10/100悬式复合绝缘子,通过覆冰水电导率方法模拟了覆冰绝缘子污秽,记录了局部电弧起弧位置和局部电弧形成至发展为沿面闪络的过程,得到了不同污秽程度下覆冰绝缘子的闪络电压变化规律。并建立了覆冰绝缘子动态闪络模型。结果表明:随着覆冰水电导率的增大,绝缘子闪络电压先下降后趋于稳定;闪络过程中,绝缘子上下钢脚处最先起弧;无冰区的存在严重畸变了绝缘子沿面电位分布,无冰区长度越短,畸变越明显。

    Abstract:

    In order to study the dynamic flashover characteristics of insulators under the coexistence of pollution and icing, based on the FXBW4-10/100 suspension composite insulator, the freezing water conductivity method was used to simulate the pollution of iced insulators. The dynamic flashover model of the polluted iced insulators is set up and the location of the local arc in the initial period of flashover is recorded. The process of the formation of the local arc to the development of the flashover is also recorded and variation rules of flashover voltage are acquired. The results show that: with the conductivity of the freezing water increases, the flashover voltage of the insulator first decreases and then stabilizes; during the flashover process, the upper and lower steel feet of the insulator start arcing first; the existence of ice-free areas severely deforms the insulator’s potential distribution along the surface; the shorter the length of the ice-free zone, the more obvious the distortion.

    参考文献
    相似文献
    引证文献
引用本文

李静,杨小娟,刘树鑫,等. 污秽覆冰绝缘子动态闪络特性分析[J]. 科学技术与工程, 2021, 21(22): 9378-9383.
Li Jing, Yang Xiaojuan, Liu Shuxin, et al. Analysis of dynamic flashover characteristics of polluted iced insulators[J]. Science Technology and Engineering,2021,21(22):9378-9383.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2020-10-22
  • 最后修改日期:2021-06-24
  • 录用日期:2021-01-21
  • 在线发布日期: 2021-08-29
  • 出版日期:
×
律回春渐,新元肇启|《科学技术与工程》编辑部恭祝新岁!
亟待确认版面费归属稿件,敬请作者关注