电瓷避雷器Issue(3)：112-119,8.DOI:10.16188/j.isa.1003-8337.2025.03.014
低频条件下盐雾环境对硅橡胶外绝缘表面击穿特性的影响研究
Surface Breakdown Characteristics of Silicone Rubber External Insulation Under Low Frequency Salt Spray Environment
摘要
Abstract
Flexible low-frequency transmission technology has unique advantages in scenarios such as long-distance offshore wind power gathering and transmission.Frequency changes can cause changes in the insulation characteristics of power equipment.However,experimental research and theoretical analy-sis on interface breakdown of external insulation of low-frequency offshore power equipment have not been reported yet.The author studies the low-frequency surface breakdown characteristics of silicone rubber under different salt spray conditions by changing salt spray test time to control the salt spray depo-sition on the surface of silicone rubber.The research results show that the surface breakdown field strength of pure silicone rubber decreases with the frequency increasing and is much greater than that of the salt spray treatment;as the salt spray concentration increases,the"frequency inflection point"corre-sponding to the breakdown field strength decreases,which indicates that the surface breakdown field strength has a higher sensitivity to salt spray under low-frequency conditions.The research analysis be-lieves that the conductivity characteristics of salt spray and low frequency are the key factors causing sur-face breakdown,and surface interface breakdown in salt spray environments should receive more attention under low frequency conditions.关键词
低频/硅橡胶/盐雾/表面击穿Key words
low frequency/silicone rubber/salt spray/surface breakdown引用本文复制引用
陈俊林,王亚,刘洋,赵文彬,李峰,潘飞,于昕哲..低频条件下盐雾环境对硅橡胶外绝缘表面击穿特性的影响研究[J].电瓷避雷器,2025,(3):112-119,8.基金项目
国家重点研发计划(编号:2021YFB2401100) （编号:2021YFB2401100）
国家电网公司科技项目"柔性低频输电关键技术".Project supported by National Key R&D Program of China(No.2021YFB2401100) （No.2021YFB2401100）
State Grid Corporation of China Science and Technology Project"Flexible Low-Frequency Power Transmission Key Technologies". （）
