高压电器2018，Vol.54Issue(1)：182-188,7.DOI:10.13296/j.1001-1609.hva.2018.01.027
母线跳线对门型架构飘挂物放电闪络的电场仿真分析研究
Electrical Field Simulation and Analysis of the Flashover Strike Between the Jumper of Busbar and the Gantry Structure Which Caused by the Hanging Object
朱璐 1莫文雄 1熊俊 1王勇 1栾乐 1谢剑翔 1廖晨1
作者信息
- 1. 广州供电局有限公司电力试验研究院,广州510420
- 折叠
摘要
Abstract
The flashover accident of equipment in transformer substation caused by the hanging object became one of the most important of the accident of the power system.It is the serious threat for the security and stability of the power system.Because of the process of the flashover is difficult to be monitored.In this article the 3D emulational mannequin is modelled for the jumper of busbar of 220 kV in the transformer substation of 500 kV.From the research of the electric field distribution among the different position,the different shape and the different material while the hanging object dropped,we got the characteristics and mechanism of breakdown of long air gap.Then,we researched the relation of the dropping position and the shortest length of the hanging object.Through simulation and corresponding analysis show that:affect two or more pieces to paint a fall busbar jumper near field distortion caused flashover breakdown busbar trip the main reason.In particular,the longer the paint film is,the more beneficial to the distortion of the electric field,thus leading to the breakdown of the arc channel.Finally,through the study guide to the substation line hanging provide protection theory.关键词
飘挂物/母线跳线/危险区域/门型塔Key words
hanging object/jumper of busbar/hazardous area/gantry tower引用本文复制引用
朱璐,莫文雄,熊俊,王勇,栾乐,谢剑翔,廖晨..母线跳线对门型架构飘挂物放电闪络的电场仿真分析研究[J].高压电器,2018,54(1):182-188,7.
