摘要
为了提高±800 kV特高压直流输电线路抵御雷害风险能力,研究了±800 kV直流线路避雷器安装选点、基本参数、安装方案和工程应用。文中以±800 kV锦苏线浙江段为工程背景,对其线路走廊落雷情况进行了分析及差异化防雷评估,提出了安装选点原则,开展了避雷器的关键技术参数的理论计算及试验研究,分析了线路避雷器的安装要求,根据安装选点原则配置了避雷器,设计了一种复合绝缘子斜拉式安装方法,成功实施了±800 kV直流线路避雷器的大规模工程应用,对±800 kV直流线路避雷器在其余±800 kV直流输电线路的推广应用具有重要的实践和借鉴意义。
To raise the lightning withstand level of±800 kV UHVDC transmission line,the±800 kV DC line arrester was analyzed in terms of installation point,basic parameters,installation method,and engineering application.The Zhejiang section of±800 kV Jin⁃Su transmission line project was taken as an example to analyze the lightning activi⁃ty along the line and the differentiated lightning protection assessment,and to put forward installation point principle.Theoretical calculation and test on the key technical parameters were conducted to analyze the installation require⁃ments of the line arrester.According to the selection principle of installation points,the±800 kV DC line arresters were deployed.A new tilted installation method of composite insulator was designed.As a result,the large⁃scale engi⁃neering application of±800 kV DC line arresters was successfully implemented.This work may provide reference for popularization and application of the±800 kV DC line arrester to other±800 kV DC transmission lines.
作者
曹伟
万帅
谷山强
陈家宏
杜雪松
李博亚
CAO Wei;WAN Shuai;GU Shanqiang;CHEN Jiahong;DU Xuesong;LI Boya(State Grid Electric Power Research Institute,Nanjing 211106,China;Wuhan NARI Limited Company,State Grid Electric Power Research Institute,Wuhan 430074,China;Hubei Key Laboratory of Power Grid Lightning Risk Prevention,Wuhan 430074,China;State Grid Zhejiang Maintenance Branch Company,Hangzhou 311232,China)
出处
《高压电器》
CAS
CSCD
北大核心
2020年第5期209-215,共7页
High Voltage Apparatus
基金
武汉市科技计划项目(±800 kV直流输电线路避雷器关键技术研究及样机试制)。
