全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

基于上下表面电弧特性的交流绝缘子污秽闪络电压计算

DOI: 10.13334/j.0258-8013.pcsee.2014.30.023, PP. 5442-5450

Keywords: 交流局部电弧,上下湿污表面,电弧特性,污闪电压计算

Full-Text   Cite this paper   Add to My Lib

Abstract:

根据上下湿污表面交流局部电弧特性的差异,建立了交流污闪电压双电弧计算模型。为获得模型参数,测量了三角形玻璃板上下表面的局部电弧,分别获得了上下表面局部电弧的静态伏安特性和重燃条件;利用高速摄像机对局部电弧进行观察,得到了上下表面弧道半径与泄漏电流峰值之间的关系;同时,研究了Π型玻璃板装置闪络过程中局部电弧延伸过程,发现上下表面局部电弧弧长均随泄漏电流峰值线性增加,弧长增量之比与表面盐密有关,由此获得了上下表面弧长之比与表面盐密的关系式。结果表明:该双电弧模型可以较为准确地计算交流绝缘子的污闪电压。

References

[1]  张志劲,蒋兴良,胡建林,等.低气压下的直流电弧特性[J].高电压技术,2009,35(4):790-797.
[2]  Zhang Zhijin,Jiang Xingliang,Hu Jianlin,et al.Characteristic of DC arc under low air pressure[J].High Voltage Engineering,2009,35(4):790-797(in Chinese).
[3]  李立浧,蒋兴良,孙才新.±800 kV直流复合绝缘子短样人工污秽闪络特性研究[J].中国电机工程学报,2007,27(10):14-19.
[4]  Li Licheng,Jiang Xingliang,Sun Caixin.Study on pollution flashover performance of short sample of ±800 kV UHV DC composite insulators[J].Proceedings of the CSEE,2007,27(10):14-19(in Chinese).
[5]  宿志一.防止大面积污闪的根本出路是提高电网的基本外绝缘水平——对我国电网大面积污闪事故的反思[J].中国电力,2003,36(12):57-61.
[6]  Su Zhiyi.To intensify basic external insulation level of power system-fundamental way for prevention of large-scale pollution flashover[J].Electric Power,2003,36(12):57-61(in Chinese).
[7]  周建国.华东电网500 kV大面积污闪的反措探讨[J].华东电力,1998,12(1):24-27.
[8]  Zhou Jianguo.Disscussion of countermeasures about 500 kV extensive flashover in east China grid[J].East China Electric Power,1998,12(1):24-27(in Chinese).
[9]  刘兆林.1996年来华东电网雾闪事故分析及对策[J].电网技术,1997,21(8):63-66.
[10]  Liu Zhaolin.Analysis of fog flashover faults in east China power system at the end of 1996 and its countermeasures[J].Power System Technology,1997,21(8):63-66(in Chinese).
[11]  李庆峰,范铮,吴穹,等.全国输电线路覆冰情况调研及事故分析[J].电网技术,2008,32(9):33-36.
[12]  Li Qingfeng,Fan Zeng,Wu Qiong,et al.Investigation of ice-overed transmission lines and analysis on transmission line failures caused by ice-coating in China[J].Power System Technology,2008,32(9):33-36(in Chinese).
[13]  Rizk F A M.Mathematical models for pollution flashover[J].Electra,1981(78):71-75.
[14]  Rizk F A M,Rezazada Q.Modeling of altitude effects on AC flashover of polluted high voltage insulators[J].IEEE Transactions on Power Delivery,1997,12(2):810-822.
[15]  Bergman I,Kolobova I.Some results of investigation of the dielectric strength studies of contaminated line insulation under lower air pressure conditions[J].Elektrotekhnika,1983,54(2):14-18.
[16]  Kawamura T.Pressure dependence of DC breakdown of contaminated insulators[J].IEEE Transactions on Dielectrics and Electrical Insulation,1990,25(6):1125-1137.
[17]  Ishii M,Shimada K.Flashover of contaminated surface under low atmospheric pressure[C]//Proceeding of the 4th International Symposium on High-Voltage Engineering.Athens,Greece:IEEE,1983:46-51.
[18]  Zhang Renyu,Zheng J.Progress in outdoor insulation research in China[J].IEEE Transactions on Dielectrics and Electrical Insulation,1990,25(6):1125-1137.
[19]  Farzaneh M,Zhang J,Li Y.Effects of low air pressure onAC and DC arc propagation on ice surface[J].IEEE Transactions on Dielectrics and Electrical Insulation,2005,12(1):60-71.
[20]  Claverie P.Predetermination of the behavior of polluted insulators[J].IEEE Transactions on Power Apparatus and Systems,1971,90(4):1902-1908.
[21]  关志成,张仁豫.染污绝缘子在交流电压下的污闪条件分析[J].清华大学学报:自然科学版,1986,26(3):30-39.
[22]  Guan Zhicheng,Zhang Renyu.Analysis of the Flashover criterion of polluted inslator under AC voltage[J].Journal of Tsinghua University:Science and Technology,1986,26(3):30-39(in Chinese).
[23]  IEC Technical Committee.Artificial pollution tests on HV insulators to be used on AC System[S].Geneva,Switzerland:International Electro technical Commission,1991.
[24]  Rahal M,Huraux C.Flashover mechanism of high voltage insulators[J].IEEE Transactions on Power Apparatus and Systems,1979,98(6):2223-2231.
[25]  Guan Zhicheng,Zhang Renyu.Calculation of dc and ac flashover voltage of polluted insulator[J].IEEE Transactions on Electrical Insulation,1990,25(4):723-729.
[26]  关志成,龙彪,张福增,等.高海拔地区直流绝缘子不同悬挂方式污闪特性[J].高电压技术,2007,33(10):1-6.
[27]  Guan Zhicheng,Long Biao,Zhang Fuzeng,et al.Flashover performance of different suspensionstyles of insulators in high altitude[J].High Voltage Engineering,2007,33(10):1-6(in Chinese).
[28]  张福增,王黎明,关志成.高海拔地区大吨位绝缘子直流污闪特性研究[J].高电压技术,2008,34(6):1089-1095.
[29]  Zhang Fuzeng,Wang Liming,Guan Zhicheng.External insulation characteristic of ultra-high voltage transmission line in high altitude area[J].High Voltage Engineering,2008,34(6):1089-1095(in Chinese).
[30]  张志劲,蒋兴良,孙才新.污秽绝缘子闪络特性研究现状及展望[J].电网技术,2006,30(2):35-40.
[31]  Zhang Zhijin,Jiang Xingliang,Sun Caixin.Present situation and prospect of research on flashover characteristics of polluted insulators[J].Power System Technology,2006,30(2):35-40(in Chinese).
[32]  Ghosh S,Chatterjee N.Polluted insulator flashover model for ac voltage[J].IEEE Transactions on Dielectrics and Electrical Insulation,1995,2(1):128-136.
[33]  过增元,赵文华.电弧和热等离子体[M].北京:科学出版社,1986:25-26.
[34]  Guo Zengyuan,Zhao Wenhua.Electric Arc and thermal plasma[M].Beijing:Science Press,1986:25-26(in Chinese).
[35]  祝卫堃.电轴法在静电场中的应用[J].物理与工程,2007,17(6):11-12.
[36]  Zhu Weikun.Application of electric axis method in electrostatic field[J].Physics and Engineering,2007,17(6):11-12(in Chinese).
[37]  王其平.电器电弧理论[M].北京:机械工业出版社,1982:98-101.
[38]  Wang Qiping.Theory of arc in electrical equipment[M].Beijing:China Machine Press,1982:98-101(in Chinese).
[39]  Wilkins R.Flashover voltage of high-voltage insulators with uniform surface-pollution films[J].IEE Proceedings-Electric Power Applications,1969,116(3):457-465.
[40]  Topalis V,Gonos F,Stathopulos A.Dielectric behaviour of polluted porcelain insulators[J].IEE Generation Transmission & Distribution,2001,148(4):269-274.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133