并联间隙在云南高海拔地区配电线路的应用方法  

Applicition Methods of Parallel Gap Device on Distribution Lines in Yunnan High Altitude Area

作　　者：龚石林[1] 冯彦钊[1] 杨鑫[2] 

机构地区：[1]云南电网公司生产设备部,昆明650011 [2]长沙理工大学电气与信息工程学院,长沙410114

出　　处：《电力学报》2015年第4期310-313,共4页Journal of Electric Power

摘　　要：在绝缘子串旁加装并联的保护间隙是"疏导式"防雷保护的典型措施,而在高海拔地区绝缘子串与并联间隙的雷电冲击绝缘配合需要重新试验。在昆明地区进行了负极性标准雷电冲击电压下PS15/500支柱式绝缘子及其并联的可调式保护间隙的雷电冲击特性试验,采用正态概率分布的方法得到了对应击穿概率的放电电压,从击穿概率的角度进行了绝缘配合设计,得到了并联间隙最佳的绝缘配合间距,为并联间隙在高海拔地区的应用提供了数据参考和方法基础。Installing parallel gap device beside the insulator string is topical measures of dredging lightning protec- tion. Lightning insulation co-ordination between insulator string and parallel gap device at high altitude area should be tested renewedly. The standand negative lightning flashover characteristics for PS15/500 post insulator and par- allel gap devices are tested at Kunming. The normal probability plot method is adapted to achieve the discharge voltage of corresponding breakdown probability. The insulation co-ordination is done from the point of breakdown probability, so the beat gap distance of paralle gap device is get. The results provide data reference and method ba- sis for the application of parallel gap device in high altitude area.

关 键 词：并联间隙 高海拔地区 配电线路 正态分布 

分 类 号：TM85[电气工程—高电压与绝缘技术]