Study on Microstructure of Composite Insulator Rod

2020 IEEE Electrical Insulation Conference (EIC) Pub Date : 2020-06-01 DOI:10.1109/eic47619.2020.9158711

Tingting Wang, Fuzeng Zhang, Xiangjun Zeng, Y. Liao, Sida Zhang, Huan Huang, Xiaohong Ma, Qianyong Lv, X. Mao, Rui Xie

{"title":"Study on Microstructure of Composite Insulator Rod","authors":"Tingting Wang, Fuzeng Zhang, Xiangjun Zeng, Y. Liao, Sida Zhang, Huan Huang, Xiaohong Ma, Qianyong Lv, X. Mao, Rui Xie","doi":"10.1109/eic47619.2020.9158711","DOIUrl":null,"url":null,"abstract":"Composite insulators have been widely used in EHV and UHV transmission lines due to their excellent anti-pollution flashover performance, high strength and easy installation. As an important part of composite insulator, glass fiber reinforced polymer rod needs to bear the main mechanical load and is also the key to insulation performance. In recent years, although the brittle fracture of rod has been effectively solved, the abnormal temperature rise and decay-like fracture caused by rod defects still affect the safe operation of transmission lines seriously. In this paper, the microstructure of the rod is studied by improved dye penetration test and three-dimensional scanning, and the influence of microstructure difference is studied by water absorption and loss power experiments. The results show that moisture penetration caused by large porosity and penetration channel is the key factor to increase the loss power of rod. By improving the performance requirements of rod, the heating and decay-like fracture of composite insulator could be avoided to some extent.","PeriodicalId":286019,"journal":{"name":"2020 IEEE Electrical Insulation Conference (EIC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE Electrical Insulation Conference (EIC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/eic47619.2020.9158711","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 1

Abstract

Composite insulators have been widely used in EHV and UHV transmission lines due to their excellent anti-pollution flashover performance, high strength and easy installation. As an important part of composite insulator, glass fiber reinforced polymer rod needs to bear the main mechanical load and is also the key to insulation performance. In recent years, although the brittle fracture of rod has been effectively solved, the abnormal temperature rise and decay-like fracture caused by rod defects still affect the safe operation of transmission lines seriously. In this paper, the microstructure of the rod is studied by improved dye penetration test and three-dimensional scanning, and the influence of microstructure difference is studied by water absorption and loss power experiments. The results show that moisture penetration caused by large porosity and penetration channel is the key factor to increase the loss power of rod. By improving the performance requirements of rod, the heating and decay-like fracture of composite insulator could be avoided to some extent.

查看原文本刊更多论文

复合绝缘子棒的微观结构研究

复合绝缘子具有抗污闪络性能好、强度高、安装方便等优点，在超高压、特高压输电线路中得到了广泛的应用。玻璃纤维增强聚合物棒作为复合绝缘子的重要组成部分，需要承担主要的机械载荷，也是绝缘性能的关键。近年来，虽然杆状物的脆性断裂问题得到了有效解决，但由于杆状物缺陷引起的异常温升和腐形断裂仍然严重影响着输电线路的安全运行。本文通过改进染料渗透试验和三维扫描研究了棒的微观结构，并通过吸水和损耗功率实验研究了微观结构差异对棒的影响。结果表明，大孔隙率和大渗透通道引起的水分渗透是提高杆损功率的关键因素。通过提高棒的性能要求，可以在一定程度上避免复合绝缘子的发热和腐蚀断裂。

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

2020 IEEE Electrical Insulation Conference (EIC)

自引率

0.00%

发文量