110kV输电线路并联间隙的电气性能试验

摘要

介绍了东莞地区110kV输电线路并联间隙装置的电气性能试验研究结果.试验内容包括复合绝缘子安装并联间隙后的电晕特性和无线电干扰特性,绝缘子串雷电冲击50%放电电压和雷电冲击伏秒特性的对比试验,不同长度复合绝缘子安装并联间隙后雷电冲击50%放电电压和雷电冲击伏秒特性试验,工频大电流燃弧特性试验,大电流通流能力试验.通过这些电气性能试验,验证了该110kV输电线路并联间隙满足运行要求.%The electrical performance testing results of parallel gap lightning protection device for the 110 kV overhead transmission line are presented. The tests include visible corona and radio interference tests of composite insulator installed parallel gap device, lightning impulse flashover conntrast tests of double suspension string, lightning impulse U50％ and V-S characteristics tests of composite insulator installed parallel gap device with different length, large power frequency current are test and discharge current test. The testing results validate the electrical performances of the parallel gap devices.