高压直流线路用长棒形瓷绝缘子的绝缘特性  

The Insulation Properties of Ceramic Long-Rod Insulator Used in HVDC Transmission Lines

作　　者：赵宇明 郝艳捧[2] 阳林[2] 孙夏青[2] 卢文浩[2] 罗兵 黎小林 

机构地区：[1]南方电网科学研究院,广州510080 [2]华南理工大学,广州510640

出　　处：《南方电网技术》2011年第1期33-37,共5页Southern Power System Technology

摘　　要：长棒形瓷绝缘子相比于盘型绝缘子具有不可击穿性、良好的自清洁性和耐腐蚀性等优点,其在高压直流线路中的应用值得研究。试验研究了长棒形瓷绝缘子在不同布置方式和积污条件下的直流污闪电压,以及该型绝缘子的操作冲击和雷电冲击放电特性。根据试验研究结果和电力行业标准,给出了长棒形瓷绝缘子应用于高压直流线路的推荐配置方案。In comparison to the cap and pin insultor,the ceramic long-rod insulator has the advantages of no breakdown possibility,self-cleaning and corroction resistance,and its application to HVDC transmission lines is worth researching.In this paper,DC artifitial pollution voltage of the ceramic long-rod insulator are studied in different insulator arrangments and contamination ratio.Switching and lighting impulse discharge characteristics of the ceramic long-rod insulator are also studied.According to the experiment results and the China power industry standards,the configuration of the ceramic long-rod insulator used in HVDC transmission lines is recommended.

关 键 词：长棒形瓷绝缘子 污闪电压 冲击放电电压 绝缘子配置 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM855