电瓷避雷器Issue(3)：61-66,74,7.DOI:10.16188/j.isa.1003-8337.2025.03.008
石墨间隙型SPD在风力发电机组中应用可靠性分析
Reliability Analysis of Graphite-Gap-Type SPD Applied in Wind Turbines
摘要
Abstract
To study the reliability of graphite-gap-type Surge Protector Device(SPD)in wind tur-bines,the SPD application reliability is analyzed starting from the production process of graphite gap-type SPD and operating environment of wind turbines,and based on the qualitative and quantitative anal-ysis of bolt loosening theory.The following conclusions are obtained:Both high current impact and vibra-tion can lead to a decrease in bolt torque and may cause the displacement of the equal voltage electric ca-pacitor plate,resulting in an increase in residual voltage and inadequate protection for the back-end e-quipment.Therefore,it is not recommended to use graphite-gap-type SPD in wind turbines.关键词
石墨间隙/风力发电机组/螺栓松动/残压Key words
graphite gap/wind turbine/bolt loosening/residual voltage引用本文复制引用
江珂,冯建伟,曹洪亮..石墨间隙型SPD在风力发电机组中应用可靠性分析[J].电瓷避雷器,2025,(3):61-66,74,7.基金项目
江苏地区风力发电机雷电防御关键技术研究(编号:KM202311).Project supported by Research on Key Technologies of Lightning Protection of Wind Turbines in Jiangsu Province(No.KM202311). （编号:KM202311）
