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  2015 

252 kV GIS特快速暂态过电压和电流的影响因素分析

, PP. 93-98

Keywords: 快速暂态过电压,隔离开关,耦合电容,劲度系数

Full-Text   Cite this paper   Add to My Lib

Abstract:

由于气体绝缘变电站(GIS)隔离开关操作而产生的快速暂态过电压(veryfasttransientovervoltage,VFTO),具有高频率、上升时间短、高幅值等特点,对GIS本体及相邻设备有较大危害。文中在隔离开关测量系统的基础上,研究了变压器耦合电容和隔离开关分合闸速度对VFTO和快速暂态电流(veryfasttransientcurrent,VFTC)的影响。当变压器耦合电容分别取300、800、1100pF时,试验结果得出VFTO和VFTC的幅值会随着耦合电容的升高而增大。测量了隔离开关在6种不同劲度系数弹簧下的分合闸速度,研究了隔离开关分合闸速度不同时对VFTO和VFTC的影响,得出当隔离开关速度越慢时,隔离开关产生的VFTO的幅值越高。在两种不同弹簧速度情况下,统计了特快速暂态电压和电流的频率、幅值和上升时间,并进行了分析。

References

[1]  邱毓昌. GIS装置及其绝缘技术[M]. 北京:水利电力出版社,1994.
[2]  TABARA D. Effets electromagnetiques de manoeuvres et de la foudre dans les postes sous enveloppe metallique[D]. Lausanne:The Technology Institute of Lausanne, Switzerland,1999.
[3]  Substations Committee of the IEEE Power Engineering Society.IEEE Std C37.122.1-1993 IEEE guide for gas-insulated substations[S]. 1994.
[4]  CARSIMAMOVIC S,BAJRAMOVIC Z,LJEVAK M,et al.Very fast electromagnetic transients in air insulated substations and gas insulated substations due to disconnector switching[C]// International Symposium on Electromagnetic Compatibility.Rio de Janeiro:IEEE,2005:382-387.
[5]  OSMOKROVIC P,KRSTIC S,LJEVAK M,et al. Influence of GIS parameters on the topler constant[J]. IEEE Transactions on Electrical Insulation,1992,27(2):214-220.
[6]  王安心. 中压SF6气体绝缘交流金属封闭开关设备设计[J]. 江苏电器,2005,6(8):20-23. WANG Anxin. Medium-voltage SF6 gas insulated AC metal closed switchgear design[J]. Jiangsu Electrical Apparatus,2005,6(8):20-23.
[7]  林 莘. 现代高压电器技术[M]. 北京:机械工业出版社,2002. LIN Xin. Modern high voltage apparatus technology[M]. Beijing:China Machine Press,2002.
[8]  贾东瑞,谢兴利,赵东成. 基于ATP的500 kV GIS变电站雷电侵入波过电压分析[J]. 电瓷避雷器,2013(6):100-105. JIA Dongrui,XIE Xingli,ZHAO Dongcheng. Research on lightning impinging surge overvoltage for 500 kV GIS substation based on ATP-EMTP[J]. Insulators and Surge Arresters,2013(6):100-105.
[9]  QING Liu,ZHANG Yufeng. Influence of switching conditions on very fast transient over-voltage in 500 kV gas insulated substation[C]//2008 International Conference on Electrical Machines and Systems. Xi’an,China:[s.n.],2008:4451-4454.
[10]  TIAN Chi,LIN Xin,XU Jianyuan,et al. Comparison and analysis on very fast transient overvoltage based on 550 kV GIS and 800 kV GIS[C]//International Conference on High Engineering and Application.Chongqing,China:[s.n.], 2008:288-291.
[11]  SALIH C,ZIJAD B,MIROSLAV L. Very fast electromagnetic transients in air insulated substations and gas insulated substations due to disconnector switching[J]. International Symposium on Electromagnetic Compatibility,2005(2):382-387.
[12]  MENG Tao,LIN Xin,XU Jianyuan. The effect of GIS apparatus parameter on very fast transient over-voltage[C]//2008 International Conference on High Voltage Engineering and Application.Chongqing,China:[s.n.],2008:292-295.
[13]  VINOD V K,JOY THOMAS M,NAIDU M S. Influence of switching conditions on the VFTO magnitudes in a GIS[J]. IEEE Transactions on Power Delivery,2001,16(4):539-544.
[14]  BOGGS S A,CHU F Y,FUJIMOTO N,et al. Disconnect switch induced transients and trapped charge in gas-insulated substations[J]. IEEE Transactions on Power Apparatus and Systems,1982,PAS-101(10):3593-3602.
[15]  COOKSON A H. Electrical breakdown for uniform fields in compressed gases[J]. IEEPROC,1980,117(1):269-280.
[16]  钟笑拳,周力行,刘 涛,等. 1000 kV GIS中快速暂态过电压抑制措施研究[J]. 电瓷避雷器,2013(6):119-123. ZHONG Xiaoquan,ZHOU Lixing,LIU Tao,et al. Research on protection measure for VFTO of 1 000 kV GIS substation[J]. Insulators and Surge Arresters,2013(6):119-123.
[17]  张 雪. GIS设备VFTO仿真中隔离开关电弧模型的研究[D]. 北京:华北电力大学,2010.
[18]  TAKUMA T,KAWAMOTO T. Numerical calculation of electric fields with a floating conductor[J]. IEEE Transactions on Dielectrics and Electrical Insulation,1997,4(2):177-181.
[19]  HAMA H. Surface flashover characteristic of disc-type spacer system initiated by wedge shaped gas gap and its improvement[J]. IEEE Trans.on PD,1992,8(6):1070-1079.
[20]  BARANNIK S I. Resistance and inductance of a gas arc[J]. Soviet Physics-technical Physics,1975(19):4-5.
[21]  DEMENIK J V. Resistance of a xenon plasma in a large flash lamp[J]. Soviet Physics-Technical Physics,1968(13):20-21.
[22]  KUSHNER M J,KIMURA W D,BYRON S R. Arc resistance of laser triggered spark gaps[J]. Journal of Applied Physics,1985,58(5):1744-1751.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133