Research on Thermal Stress Distribution of GIS Basin Insulator

Xu Yang, Changhong Zhang, Weiguo Li, Chao Gao, F. Zhou, Ruodong Huang, Guoli Wang, W. He
{"title":"Research on Thermal Stress Distribution of GIS Basin Insulator","authors":"Xu Yang, Changhong Zhang, Weiguo Li, Chao Gao, F. Zhou, Ruodong Huang, Guoli Wang, W. He","doi":"10.1109/AEERO52475.2021.9708393","DOIUrl":null,"url":null,"abstract":"Basin insulator is an important part of gas insulated metal enclosed switchgear (GIS). Its mechanical performance is not good, which is easy to cause insulation failure, which threatens the safe and stable operation of GIS, and thermal stress is one of the reasons for the deterioration of mechanical performance of basin insulator. In order to study the distribution law of thermal stress and strain of basin insulator, this paper establishes 252 kV GIS basin insulator simulation model by combining simulation and test, and establishes a thermal stress ultrasonic detection system. The distribution law of thermal stress and strain of 252 kV GIS basin insulator is obtained by finite element simulation analysis and stress ultrasonic longitudinal wave reflection detection. The results show that the temperature of the insulator is gradiently distributed along the conductor flange direction when the center conductor is under the temperature load. The thermal stress and the thermal strain decrease gradually along the conductor flange direction, and increase with the increase of the temperature load. The normal ultrasonic propagation time is characterized by normal thermal strain, which is proportional to the temperature load.","PeriodicalId":6828,"journal":{"name":"2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO)","volume":"34 1","pages":"1-5"},"PeriodicalIF":0.0000,"publicationDate":"2021-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/AEERO52475.2021.9708393","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

Basin insulator is an important part of gas insulated metal enclosed switchgear (GIS). Its mechanical performance is not good, which is easy to cause insulation failure, which threatens the safe and stable operation of GIS, and thermal stress is one of the reasons for the deterioration of mechanical performance of basin insulator. In order to study the distribution law of thermal stress and strain of basin insulator, this paper establishes 252 kV GIS basin insulator simulation model by combining simulation and test, and establishes a thermal stress ultrasonic detection system. The distribution law of thermal stress and strain of 252 kV GIS basin insulator is obtained by finite element simulation analysis and stress ultrasonic longitudinal wave reflection detection. The results show that the temperature of the insulator is gradiently distributed along the conductor flange direction when the center conductor is under the temperature load. The thermal stress and the thermal strain decrease gradually along the conductor flange direction, and increase with the increase of the temperature load. The normal ultrasonic propagation time is characterized by normal thermal strain, which is proportional to the temperature load.
GIS盆地绝缘子热应力分布研究
盆形绝缘子是气体绝缘金属封闭开关设备的重要组成部分。其机械性能不好,容易造成绝缘失效,威胁GIS的安全稳定运行,而热应力是盆式绝缘子机械性能恶化的原因之一。为了研究盆式绝缘子的热应力应变分布规律,本文采用仿真与试验相结合的方法,建立了252 kV GIS盆式绝缘子仿真模型,并建立了热应力超声检测系统。通过有限元模拟分析和应力超声纵波反射检测,得到了252kv GIS盆地绝缘子的热应力应变分布规律。结果表明:当中心导体承受温度载荷时,绝缘子温度沿导体法兰方向呈梯度分布;热应力和热应变沿导体法兰方向逐渐减小,随温度载荷的增加而增大。正常的超声传播时间表征为正常的热应变,与温度载荷成正比。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信