复合绝缘子及金具抗风性能本质提升方法  

Method to Improve Wind Resistance Performance of Composite Insulator and Hardware

作　　者：龚浩 梁建权[3] 王建 田正波 吴念 别士光 柯贤彬[1,2] GONG Hao;LIANG Jianquan;WANG Jian;TIAN Zhengbo;WU Nian;BIE Shiguang;KE Xianbin(NARI Corporation(State Grid Electric Power Research Institute),Nanjing 211106,China;State Grid Electric Power Research Institute Wuhan NARI Corporation,Wuhan 430074,China;State Grid Heilongjiang Electric Power Corporation,Academy of Sciences,Harbin 150030,China;State Grid Xinjiang Electric Power Corporation,Electric Power Research Institute,Urumqi 830011,China)

机构地区：[1]南瑞集团(国网电力科学研究院)有限公司,南京211106 [2]国网电力科学研究院武汉南瑞有限责任公司,武汉430074 [3]国网黑龙江省电力有限公司电力科学研究院,哈尔滨150030 [4]国网新疆电力有限公司电力科学研究院,乌鲁木齐830011

出　　处：《电瓷避雷器》2021年第6期177-183,共7页Insulators and Surge Arresters

基　　金：国家电网公司科技项目(编号:5200-201930071A-0-0-00)。

摘　　要：风沙灾害带来的输电线路故障中线路绝缘子风偏、连接金具磨损等问题尤为突出。笔者从复合绝缘子伞裙和金具两方面展开抗风性能本质提升方法研究。首先在复合绝缘子伞裙部分研究引入新型高聚物环氧材料,开展了材料选型和改性研究,具备优异电气绝缘性能、耐老化性能和较高的机械性能,有效解决大风沙尘对复合绝缘子伞裙的损伤难题。然后对于绝缘子金具,采用添加抗磨损涂层的方式提升机械性能。通过溶胶-涂覆法在抛光后的金具表面制备保护型涂层,以Al_(2)O_(3)为主要涂层,ZrO_(2)为改善层,制备了不同层数的复合涂层,研究了ZrO_(2)对金具表面Al_(2)O_(3)涂层微结构的影响,在金具表面形成致密且平整的涂层。研究结果表明,通过对绝缘子伞裙和金具的整体设计与材料研究,有效提升了复合绝缘子抗风抗磨损性能。Due to wind and sand disasters, problems such as wind deviation of line insulators and wear of connection hardware are particularly prominent in power transmission line. In this paper, the new polymer epoxy material is applied to the composite insulator umbrella skirt, which has excellent electrical insulation performance, aging resistance and higher mechanical properties, and can effectively solve the problem of damage to the composite insulator umbrella skirt caused by strong wind. For insulator hardware, wear resistant coating is used to improve mechanical properties. The protective coating was prepared by sol-coating method on the surface of the hardware after polishing. The composite coating with different layers was prepared by taking Al_(2)O_(3) as the main coating and ZrO_(2) as the improvement layer. The results show that the Al_(2)O_(3) layer formed on the surface of the hardware has a higher crystallinity, and the recrystallization of Al_(2)O_(3) was prevented during the sintering process, and the boundary of Al_(2)O_(3) particles exists in the continuous ZrO_(2) clusters, thus forming a dense and smooth coating on the surface of the hardware, and improving the wind resistance and wear resistance of insulator hardware.

关 键 词：复合绝缘子 高聚物 金具 防护涂层 Al_(2)O_(3) ZrO_(2) 微结构 

分 类 号：TM216[一般工业技术—材料科学与工程]