Dynamic formation mechanism of water droplet and induced surface discharges on silicone rubber composites
作者机构:Key Laboratory of Smart Grid of Ministry of Education(Tianjin University)School of Electrical and Information EngineeringTianjin UniversityTianjin 300072People's Republic of China
出 版 物:《High Voltage》 (高电压(英文))
年 卷 期:2019年第4卷第1期
页 面:59-64页
核心收录:
学科分类:080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学]
基 金:the National Nature Science Foundation of China(Grant no.5167718) the Science and Technology Project of State Grid Corporation of China(Grant no.5202011600UV)
主 题:deformation surface mechanism
摘 要:Wettability has become one of the most important factors influencing power equipment insulation system in coastal power grid,which can seriously threaten the safety of power *** paper aimed at numerical simulation and experimental investigation on dynamic formation mechanism of water droplet and induced surface discharges on silicone rubber composites under different AC voltages,considering the factors of surface tension and droplet *** results reveal that the spreading coefficient increases with increasing the electric field intensity from 1 to 5 kV/cm and with increasing the droplet volume from 10 to 50μ*** spreading coefficient shows a decreasing tendency when the surface tension increases from 29.3 to 61.0 mN/***,the maximum of surface electric field shows an increasing tendency under the condition of increasing both the droplet volume and the surface *** the basis of the physical model of droplet deformation,the electric field force and the surface tension play a significant role in the process of droplet ***,the experimental results are consistent with the simulation analysis,reflecting that the droplet deformation and the induced surface discharges mainly depend on two parameters:the droplet volume and the magnitude of applied voltage.