胡建林;钟睿;刘泽辉;李洋洋;蒋兴良;

• 1:输配电装备及系统安全与新技术国家重点实验室(重庆大学)
• 2:国网输电线路舞动防治技术重点实验室(国网河南省电力公司电力科学研究院)

摘要(Abstract)：

RTV绝缘子凭借其优良的憎水性能和防污闪特性,广泛应用于我国电力系统输电线路中。选取河南地区1000 k V特高压交流线路中运行3 a的RTV绝缘子进行试验,从绝缘子表面检查、憎水性、憎水迁移性、傅里叶变换红外光谱(FTIR)和热重分析(TG)等方面分析了运行环境对RTV绝缘子表面涂层老化的影响。结果表明:RTV绝缘子运行3 a后,涂层出现起皮、脱落等现象,表面涂层憎水性保持HC1~HC3水平,在迁移96 h后涂层憎水性保持HC3等级。结合FTIR和TG手段发现,运行应力造成了RTV涂层中硅橡胶长链、基团交联程度和无机填料含量的下降。最后根据试验结果讨论了绝缘子伞型结构、悬挂方式对涂层老化的影响。

关键词(KeyWords)： RTV绝缘子;表面状态;憎水性;憎水迁移性;傅里叶变换红外光谱;热重分析

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51321063,51607019);; 国家电网公司科技项目(52170216000D)~~

作者(Author): 胡建林;钟睿;刘泽辉;李洋洋;蒋兴良;

Email:

DOI: 10.13335/j.1000-3673.pst.2017.1322

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