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...
高压电器  2014 

污秽绝缘子在不同脉冲电压条件下的闪络特性研究

, PP. 51-55

Keywords: 污秽绝缘子,非标脉冲电压波形,盐密,灰密,闪络电压,闪络时间

Full-Text   Cite this paper   Add to My Lib

Abstract:

输电线路在污秽条件下的闪络(污闪)是威胁电力系统安全运行的主要事故。笔者以两片串的绝缘子短串为研究对象,通过对绝缘子两端施加0.5/5μs和2.6/50μs的冲击电压波形,研究了盐密、灰密污秽度对绝缘子闪络特性的影响,同时对波头时间不变,波尾时间对绝缘子闪络特性的影响进行了研究。结果表明,盐密对绝缘子闪络电压的影响大于灰密;当盐密、灰密值较低时,冲击电压波形对绝缘子串闪络电压影响不大;灰密值固定时,绝缘子闪络电压随着盐密值的增加而减小;而当盐密值固定时,绝缘子闪络电压随着灰密值的增加呈现先减小后增加的趋势;固定灰盐比为51时,在2.6/50μs波形条件下,绝缘子闪络电压随着盐密值增加而增加,而对于0.5/5μs波形时,随着盐密值增加,绝缘子闪络电压呈现先减小后增加的趋势;随着波尾时间增加,绝缘子闪络电压下降明显,在盐密值较大时更加显著。

References

[1]  WILKINS R. Flashover of high voltage insulators with uniform surface pollution films[J]. Proc. IEE,1969,116(3):457-465.
[2]  张永记. 不同盐/灰密下普通绝缘子串交流闪络特性的研究[D]. 重庆:重庆大学,2006. ZHANG Yongji. Study on AC flashover performance of artificially polluted XP-160 insulators at various ρESDD and ρNSDD[D]. Chongqing:Chongqing University,2006.
[3]  赵宇明,黎小林,吕金壮,等. 高海拔地区外绝缘参数海拔修正方法研究[J]. 南方电网技术,2011,5(2):59-63. ZHAO Yuming,LI Xiaolin,LYU Jinzhuang,et al. Study on the altitude correction method for external insulation parameters in high altitude areas[J]. Southern Power System Technology,2011,5(2):59-63.
[4]  SUNDARARAJAN R,GORUR R S. Dynamic arc modeling of pollution flashover if insulators under DC voltage[J]. IEEE Transaction on Electrical Insulation,1993,26(2):209-218.
[5]  NAITO K,SCHNEIDER H M. Round-robin artificial contamination test on high voltage DC insulators[J]. IEEE Transactions on Power Delivery,1995,10(3):1438-1442.
[6]  GHOSH P S,CHATTERJEE N. Polluted insulator flashover model for AC voltage[J]. IEEE Transaction on Dielectrics and Electrical Insulation,1995,2(1):128-136.
[7]  SALAM M A,AHMAD H,AHMAD A S,et al. Study of creepage distance of the contaminated insulator in correlation with salt deposit density[C]//Annual Report Conference on Electrical Insulation and Dielectric Phenomena.Canada:[s.n.],2000:215-217.
[8]  王 军,赵 磊,申吴刚. 冲击电压下真空中固体沿面闪络的试验研究[J]. 电网与清洁能源,2012,28(2):52-55. WANG Jun,ZHAO Lei,SHEN Wugang. Experimental study of solid surface flashover in vacuum under impulse voltage[J]. Power System and Clean Energy,2012,28(2):52-55.
[9]  JIANG X,SHU L,ZHANG Y,et al. Influence of ESDD and NSDD on AC flashover characteristic of artificially polluted XP-160 insulators[J]. Proceedings of the CSEE,2006,26(15):24-28.
[10]  JIANG X,YUAN J,SHU L. Comparison of DC pollution flashover performances of various types of porcelain,glass,and composite insulators[J]. IEEE Transaction on Power Delivery,2008,23(2):1183-1190.
[11]  ISHII M,KAWAMURA T,KOUNO T,et al. Multistory transmission tower model for lightning surge analysis[J]. IEEE Transactions on Power Delivery,1991,6(3):1327-1335.
[12]  SUNDARARAJAN R,GORUR R S. Role of non-soluble contaminants on the flashover voltage of porcelain insulators[J]. IEEE Transaction on Dielectrics and Electrical Insulation,1996,3(1):113-118.
[13]  LAMBETH P J. Variable voltage application for insulator pollution tests[J]. IEEE Transaction on Power Delivery,1988,3(4):2103-2111.
[14]  顾乐观,孙才新. 电力系统的污秽绝缘[M]. 重庆:重庆大学出版社,1990. GU Leguan,SUN Caixin. Polluted insulation of power system[M]. Chongqing:Chongqing University Press,1990.
[15]  蒋兴良,舒立春,孙才新. 电力系统污秽与覆冰绝缘[M].北京:中国电力出版社,2009. JIANG Xingliang,SHU Lichun,SUN Caixin. Insulation of electric power system under pollution and icing conditions[M]. Beijing:China Electric Power Press,2009.
[16]  GB/T 22707―2008 直流系统用高压绝缘子的人工污秽试验[S]. 2008. GB/T 22707―2008 Artificial pollution tests on high-voltage insulators to be used on d.c. systems [S]. 2008.
[17]  危 鹏,何远华,胡文岐. 接触角法测绝缘子表面湿润性的对比和分析[J]. 电瓷避雷器,2012(2):6-10. WEI Peng,HE Yuanhua,HU Wenqi. Contrast and analysis of contact angle method for measuringwettability of insulator surfaces[J]. Insulators and Surge Arresters,2012(2):6-10.
[18]  毛颖科,关志成,王黎明,等. 污秽实验室泄漏电流测量系统的研制[J]. 高压电器,2007,43(2):94-96. MAO Yingke,GUAN Zhicheng,WANG Liming,et al.Development of a leakage current monitoring system for pollution test lab[J]. High Voltage Apparatus,2007,43(2):94-96.
[19]  严伟佳,邹 铁. 绝缘子饱和盐密适用性探讨[J]. 电瓷避雷器,2012(2):11-14. YAN Weijia,ZOU Tie. Discussion on applicability of saturated equal salt deposit density of insulator[J]. Insulators and Surge Arresters,2012(2):11-14.
[20]  杨 圣,刘维来,李晓峰. 绝缘子污闪电压蒙特卡罗法预测的基础研究[J]. 高压电器,2007,43(5):343-345. YANG Sheng,LIU Weilai,LI Xiaofeng. Fundamental research on insulator flashover voltage based on the montecarlo prediction[J]. High Voltage Apparatus,2007,43(5):343-345.
[21]  程加堂,熊 伟,艾 莉. 绝缘子等值附盐密度的预测[J]. 电瓷避雷器,2010(4):8-11. CHENG Jiatang,XIONG Wei,AI Li. Prediction of insulator’s ESDD[J]. Insulators and Surge Arresters,2010(4):8-11.
[22]  廖青华,吕 ?,唐林权. 基于灰靶理论的高压绝缘子污秽状态综合评判[J]. 电瓷避雷器,2012(3):9-14. LIAO Qinghua,LYU Yan,TANG Linquan.Synthetic evaluation of high voltage insulator pollution state based on grey target theory[J]. Insulators and Surge Arresters,2012(3):9-14.
[23]  CIGRE Working Group 33. 04 Study Committee.A critical comparison of artificial pollution test methods for HV insulators[J]. Electra,1979(64):117-136.
[24]  CIGRE Working Group 33.04 Study Committee. Artificial pollution testing of HVDC insulators:Analysis of factors influencing performance[J]. Electra,1992(140):99-113.
[25]  Task Force 04.04 of Study Committee 33.Artificial pollution testing of HVDC insulators[J]. Transmission and Distribution,2001,148(4):269-274.
[26]  SUZUKI Y,ITO S,AKIZUKI M,et al. Artificial contamination test method on accumulated contamination conditions[J]. Eleventh International Symposium on High Voltaghe Engineering,1999(4):192-195.
[27]  吕建红,周年光,彭继文,等. 基于大气环境质量的电网绝缘污秽等级划分[J]. 电瓷避雷器,2012(4):14-15. LYU Jianhong,ZHOU Nianguang,PENG Jiwen,et al. The classification of insulator pollution severity of electric power grid based on atmospheric quality[J]. Insulators and Surge Arresters,2012(4):14-15.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133