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 

特高压设备绝缘试验所面临的技术挑战

, PP. 1-5

Keywords: 特高压, 冲击, 过冲, 联合电压, 湿试验, 直流无线电干扰

Full-Text   Cite this paper   Add to My Lib

Abstract:

因特高压设备的特殊性,其雷电冲击试验、联合电压试验、湿耐受试验以及直流无线电干扰试验在实施过程中面临着巨大的技术挑战。笔者结合标准、实际试验情况以及试验数据,分析了以上4种试验的难点以及所存在的问题,同时针对实际试验中应采取的应对措施或未来标准的修订提出了建议。对雷电冲击试验,应采取过冲阻尼装置解决波前时间和过冲的矛盾,同时对于部分特殊的特高压设备,相关标准应规定其特殊要求;对工频和冲击的联合电压试验,工频侧的电压补偿不可避免,同时应采取特殊分压器测量确定电压跌落值;对湿试验,淋雨量的容差必然会超出标准要求,且雨滴的雾化现象不可避免。未来标准修订时应充分考虑此情况,对直流无线电干扰试验,因直流电晕特性和交流有本质区别。建议采用测量直流电晕起始和熄灭电压或者用交流法替代测量。

References

[1]  赵婉君.高压直流输电工程技术[M]. 北京:中国电力出版社,2005.
[2]  刘振亚.智能电网技术[M]. 北京:中国电力出版社, 2010.
[3]  刘振亚.特高压直流电气设备[M]. 北京:中国电力出版社, 2009.
[4]  刘振亚.特高压电网[M]. 北京:中国经济出版社,2005.
[5]  张小勇.特高压电器设备绝缘试验技术研究[J]. 高压电器, 2007, 43(2):106-108. ZHANG Xiaoyong. Study on insulation test techniques for ultra-high-voltage equipments[J]. High Voltage Apparatus,2007, 43(2):106-108.
[6]  RIECHERT U,HOLAUS W. Ultra high voltage gas-insulated switchgear-A technology milestone[J]. European Transactions on Electrical Power ETEP, 2011,22(1): 60-82.
[7]  RIECHERT U,PIETSCH R,OKABE S,et al.Experiences concerning dielectric testing of ultra high voltage (UHV) equipment[C]//CIGRE SC A2 & D1 Joint Colloquium 2011 in Kyoto-transformers, Materials and Emerging Test Techniques.Kyoto:IEEE, 2011:11-16.
[8]  OKABE S,TSUBOI T,UETA G,et al.Study of lightning impulse test waveforms for UHV equipment[C]//CIGRE. Paris:CIGRE,2012:D1-204.
[9]  MIYASHITA M,SHIMIZU Y,KAJIO H,et al.Experiment and examination of long air gap characteristics on positive switching impulse[C]//National Convention of IEEE.[S.l.]:IEEE,2011:6-290.
[10]  G??HLER R,HELBIG D,JAENICKE L R,et al.1 200 kV AC substations: Full-scale products and integrated solutions[C]//2nd IEC/CIGRE UHV Symposium.Delhi:CIGRE, 2009:29-30.
[11]  CIGRE Working Group A3.22.Background of technical specifications for substation equipment exceeding 800 kV AC[C]//CIGRE.Brochure:CIGRE, 2011:456.
[12]  SUN Zhaoying, LIAO Weiming, SU Zhiyi, et al.Test study on the altitude correction factors of air gaps of ±800 kV UHVDC projects[C]// Proceedings Paper FP0557 of 2009 International Conference on UHV Power Transmission.[S.l.]:IEEE,2009:1-7.
[13]  GB/T 16927.1―2011 高电压试验技术 第1部分:一般定义及试验要求[S]. 2011. GB/T 16927.1―2011 High voltage test techniques Part 1:General definitions and requirements[S]. 2011.
[14]  IEC 60060-1 High voltage test techniques Part 1:General definitions and requirements[S]. 2010.
[15]  GB/T 11022―2011 高压开关设备和控制设备标准的共用技术要求[S]. 2011. GB/T 11022―2011 Common specifications for high-voltage switchgear and controlgear standards[S]. 2011.
[16]  GB 7674―2008 额定电压72.5 kV及以上气体绝缘金属封闭开关设备[S]. 2008. GB 7674―2008 Gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above[S]. 2008.
[17]  CIGRE WG D1.36.Special requirements for dielectric testing of ultra high voltage (UHV) equipment[C]//Recommendations for Standardization of Dielectric Testing of UHV Equipment Exceeding 800 kV,up to and including 1 200 kV. Paris:IEEE,2012:77-81.
[18]  尚振球, 郭文元.高压电器[M]. 西安:西安交通大学出版社, 1992.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133