CHAO Yafeng, XI Chongyu, WANG Feng, et al. Operating Status and Improvement of Porcelain Insulator with External Zinc Ring for UHVDC Transmission Line[J]. 2020, 40(5): 69-73.
CHAO Yafeng, XI Chongyu, WANG Feng, et al. Operating Status and Improvement of Porcelain Insulator with External Zinc Ring for UHVDC Transmission Line[J]. 2020, 40(5): 69-73.DOI:
特高压直流输电线路瓷质绝缘子外加锌环运行状况与改进
摘要
介绍了特高压直流输电线路瓷质绝缘子家装锌环的原因、外加锌环的型式及工艺
提出改进锌环要求
设计三种外加锌环改进方案
并在实验室开展了电解腐蚀试验。结果表明改进锌环在实现全包围的情况下能够起到牺牲阳极的作用
连接构件具有较好防腐效果
且安装简便。
Abstract
The paper introduces the reason of adding zinc ring to porcelain insulator of UHVDC transmission line
the type and process of adding zinc ring
puts forward the requirement of improving zinc ring
designs three improved schemes of zinc ring and carries out electrolytic corrosion tests in the laboratory. The results show that the improved zinc ring can sacrifice the anode under the circumstance of full enclosure. The connecting components have good anticorrosion effect and are easy to install.