不同结构型式的配网复合绝缘横担电气性能研究  

Electrical Performance of Composite Insulation Crossarms with Different Structures in Distribution Networks

作　　者：吴雄 闻集群[1,2,3] 刘晓宇 柯锐[1,2,3] 沈帆 何昌林 郭维[1,2,3] WU Xiong;WEN Jiqun;LIU Xiaoyu;KE Rui;SHEN Fan;HE Changlin;GUO Wei(NARI Group Co.,Ltd.,Nanjing 210003,China;Wuhan NARI Limited Liability Company,State Grid Electric Power Research Institute,Wuhan 430074,China;Hubei Provincial Key Laboratory of Lightning Strike Risk Prevention,Wuhan 430074,China;State Grid Liaoning Electric Power Co.,Ltd.Dandong Power Supply Company,Dandong 118000,China)

机构地区：[1]南瑞集团有限公司,江苏南京211106 [2]国网电力科学研究院武汉南瑞有限责任公司,湖北武汉430074 [3]电网雷击风险预防湖北省重点实验室,湖北武汉430074 [4]国网辽宁省电力有限公司丹东供电公司,辽宁丹东118000

出　　处：《绝缘材料》2021年第5期40-46,共7页Insulating Materials

基　　金：国家电网公司科技项目(SGZJ0000KXJS1900221)。

摘　　要：为了更好指导复合绝缘横担的应用,通过试验对比研究了方管复合绝缘横担及方棒复合绝缘横担的雷电冲击电压、湿工频闪络电压、污秽闪络电压及污秽覆雪闪络电压的变化情况。结果表明:10 kV方管复合绝缘横担的50%干雷电闪络电压为388.3 kV,高于方棒复合绝缘横担的370.0 kV,但方管复合绝缘横担的湿工频耐受电压、污秽工频耐受电压及污秽覆雪闪络电压均低于方棒复合绝缘横担,最后提出了不同运行环境下复合绝缘横担差异化的应用方案。In order to better guide the application of composite insulation crossarms,the lightning impulse voltage,wet power frequency flashover voltage,pollution flashover voltage,and pollution snow-covered flashover voltage of the square tube composite insulation crossarm and the square bar composite insulation crossarm were compared and studied through experiments.The results show that the 50%dry lightning flashover voltage of the 10 kV square tube composite insulation crossarms is 388.3 kV,which is higher than that of the square bar composite insulation crossarm(370.0 kV).However,the wet power frequency withstand voltage,pollution withstand voltage,and pollution snow-covered flashover voltage of the square tube composite insulation crossarms are lower than that of the square bar composite insulation crossarms.Finally,the different application scheme of the composite insulation crossarms under different operating environment is proposed.

关 键 词：方管 方棒 绝缘横担 雷电冲击 湿工频 污秽 覆雪 

分 类 号：TM215[一般工业技术—材料科学与工程]