| 110kV电压互感器瓷套交流冰闪特性及防冰闪措施 |
| |
| 引用本文： | 张志劲,蒋兴良,胡建林,陈凌,刘兵,黄海舟.110kV电压互感器瓷套交流冰闪特性及防冰闪措施[J].重庆大学学报(自然科学版),2011,34(7):69-75. |
| |
| 作者姓名： | 张志劲 蒋兴良 胡建林 陈凌 刘兵 黄海舟 |
| |
| 作者单位： | 重庆大学输配电装备及系统安全与新技术国家重点实验室;重庆ABB变压器有限公司; |
| |
| 基金项目： | 国家重点基础研究发展计划资助项目(2009CB724502); 国家自然科学基金青年基金资助项目(50807056) |
| |
| 摘 要： | 为了解覆冰对电力系统的安全可靠运行影响程度,开展了110kV电压互感器瓷套交流覆冰闪络特性试验研究,结果表明:随着覆冰程度的增加,110kV电压互感器瓷套交流覆冰闪络电压将降低,其覆冰闪络电压与覆冰质量和覆冰厚度分别满足负指数和负幂函数关系,且特征指数范围分别为0.085～0.100和0.40～0.55;110kV电压互感器瓷套冰闪电压与覆冰前污秽有关,其覆冰闪络电压与污秽满足负幂函数关系,且特征指数范围为0.21～0.26;当覆冰厚度达25mm且盐密为0.08mg/cm2及以上时,运行中的110kV互感器瓷套将发生覆冰闪络;防止110kV互感器瓷套交流冰闪的有效措施是采用增加结构高度和加装增爬裙,研究结果可为覆冰地区变电站外绝缘的选择和设计提供参考。
|
| 关 键 词： | 互感器 交流 覆冰 闪络 增爬裙 防冰闪措施 |
| 收稿时间： | 3/2/2011 12:00:00 AM |
AC icing flashover performance of 110 kV potential transformer and the measures of anti-icing flashover |
| |
| ZHANG Zhi-jin,JIANG Xing-liang,HU Jian-lin,CHEN Ling,LIU Bing and HUANG Hai-zhou.AC icing flashover performance of 110 kV potential transformer and the measures of anti-icing flashover[J].Journal of Chongqing University(Natural Science Edition),2011,34(7):69-75. |
| |
| Authors: | ZHANG Zhi-jin JIANG Xing-liang HU Jian-lin CHEN Ling LIU Bing and HUANG Hai-zhou |
| |
| Institution: | ZHANG Zhi-jin1,JIANG Xing-liang1,HU Jian-lin1,CHEN Ling1,LIU Bing2,HUANG Hai-zhou1(1.State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing 400044,P.R.China,2.Chongqing ABB Transformer CO.,LTD.,Chongqing 400052,P.R.China) |
| |
| Abstract: | The AC flashover performance of 110 kV iced potential transformer is investigated by testing in laboratory to analyze the influence degree of icing on the safe and reliable operation of power system.The results show that the AC flashover voltage of 110 kV iced potential transformer decreases with the ice amount increasing.The relation between icing flashover voltage and ice amount accords with the negative exponential function law,and the characteristic index is in the range of 0.085~0.100.Meanwhile,the rel... |
| |
| Keywords: | transformer AC ice flashover creepage extenders measure of anti-icing flashover |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《重庆大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《重庆大学学报(自然科学版)》下载免费的PDF全文 |
|
