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 

变压器套管局部放电的特征与识别

DOI: 10.13296/j.1001-1609.hva.2015.07.028, PP. 141-147

Keywords: 套管,局部放电,PRPD,特高频,模式识别

Full-Text   Cite this paper   Add to My Lib

Abstract:

变压器套管的局部放电是引起绝缘劣化,导致套管着火和爆炸的重要原因,现有的套管局部放电测量需要利用套管末屏的接地线,操作复杂,且容易受地网中的脉冲信号干扰。为了解决这个问题,文中提出了一种基于特高频技术的变压器套管局部放电检测及模式识别方法。根据实际套管典型缺陷,在实验室以110kV变压器出线套管为试验对象,制造了套管顶部悬浮、套管末屏引线接触不良、套管下部均压环悬浮模型、套管下瓷套沿面放电这4种缺陷模型。利用传统脉冲电流和特高频检测方法,测量了局部放电特性,对比分析了脉冲电流PRPD、特高频PRPD、NV图谱的特征。研究结果表明套管缺陷局放特高频PRPD谱图与脉冲电流法所测结果基本一致;根据PRPD、NV图谱的形态特征,可以辨识出套管局部放电缺陷类型及可能的放电部位。文中的研究成果对推动套管局部放电带电检测有重要意义。

References

[1]  林 赫,王元峰. 变压器高压套管故障原因分析[J]. 电网技术,2008(S2):253-255. LIN He,WANG Yuanfeng. Analysis on the reason of transformer thimble fault[J]. Power System Technology, 2008(S2):253-255.
[2]  孙 勇,朱建新. 换流变压器套管爆炸事故原因分析[J].南方电网技术,2008,2(5):82-83. SUN Yong,ZHU Jianxin. Cause analysis of an explosive accident of converter transformer bushing[J]. Southern Power System Technology,2008,2(5):82-83.
[3]  赵 璐,项旭杨,姚红伟. 常接地结构的高压套管末屏接地故障原因分析[J]. 华东电力,2014,42(8):1586-1588. ZHAO Lu,XIANG Xuyang,YAO Hongwei. Cause analysis for the HV transformer bushing tap grounding fault[J]. East China Electric Power,2014,42(8):1586-1588.
[4]  SETAYESHMEHR A,AKBARI A,BORSI H,et al. On-line monitoring and diagnoses of power transformer bushings[J]. IEEE Transactions on Dielectrics and Electrical Insulation,2006,13(3):608-615.
[5]  陈丽娟,胡小正. 2010年全国输变电设施可靠性分析[J].中国电力,2011,44(6):71-77. CHEN Lijuan,HU Xiaozheng. Statistic analysis on reliability of power transmission and transformation facilities in China in 2010[J]. Electric Power,2011,44(6):71-77.
[6]  陈丽娟,李 霞. 2011年全国输变电设施可靠性分析[J].中国电力,2012,45(7):89-93. CHEN Lijuan,LI Xia. Statistic analysis on reliability of power transmission and transformation facilities in China in 2011[J]. Electric Power,2012,45(7):89-93.
[7]  刘云鹏,律方成,李成榕,等. 基于电容分压的电力变压器套管绝缘在线检测的研究[J]. 高压电器,2004,40(2):121-123. LIU Yunpeng,LYU Fangcheng,LI Chengrong,et al. On-line monitoring transformer’s bushing insulation based on its tap capacitive divider[J]. High Voltage Apparatus,2004,40(2):121-123.
[8]  吕延锋,钟连宏,王建华. 电气设备绝缘介质损耗测量方法的研究[J]. 高电压技术,2000,26(5):38-40. LV Yanfeng,ZHONG Lianhong,WANG Jianhua. Study on the dielectric loss measurement of power equipment[J]. High Voltage Engineering,2000,26(5):38-40.
[9]  谈克雄,李福祺,张会平,等. 提高电容型设备介损监测装置性能的意见[J]. 高电压技术,2002,28(11):21-23. TAN Kexiong,LI Fuqi,ZHANG Huiping,et al. Advice for improving performance of on-line tanδ motoring devices for capacitive type equipment[J]. High Voltage Engineering,2002,28(11):21-23.
[10]  聂德鑫,伍志荣,罗先中,等. 特高压变压器套管局部放电试验技术分析[J]. 高电压技术,2010,36(6):1448-1454. NIE Dexin,WU Zhirong,LUO Xianzhong,et al. Analysis on the partial discharge test technology of UHV transformer bushing[J]. High Voltage Engineering,2010,36(6):1448-1454.
[11]  唐嘉宏. 220 kV变压器高压套管末屏故障原因分析与处理[J]. 华电技术,2011,33(7):45-47. TANG Jiahong. Analysis on reasons of high voltage bushing end shield fault of 220 kV transformer and treatment[J]. Water Conservancy & Electric Power Machinery,2011,33(7):45-47.
[12]  韩金华,张健壮,王 伟,等. 电力变压器高压套管末屏接地方式问题探讨[J]. 变压器,2009,46(6):64-67. HAN Jinhua,ZHANG Jianzhuang,WANG Wei,et al. Discussion on earthing modes of high voltage bushing end shield in power transformer[J]. Transformer,2009,46(6): 64-67.
[13]  沈 煜,罗 维. 变压器套管末屏对现场局部放电测量影响的实例与分析[J]. 高压电器,2009,45(3):157-159. SHEN Yu,LUO Wei. Case analysis of the influences of bushing tap on on-site PD test for transformers[J]. High Voltage Apparatus,2009,45(3):157-159.
[14]  汪新泉,贺艳群. 油纸电容式套管局部放电现象及分析[J]. 变压器,2008,45(1):31-34. WANG Xinquan,HE Yanqun. Partial discharge phenomena of oil-paper capacitor bushing and their analysis[J]. Transformer,2008,45(1):31-34.
[15]  邵 进,胡武炎,贾风鸣,等. 红外热成像技术在电力设备状态检修中的应用[J]. 高压电器,2013,49(1):126-129. SHAO Jin,HU Wuyan,JIA Fengming,et al. Application of infrared thermal imaging technology to condition-based maintenance of power equipment[J]. High Voltage Apparatus,2013,49(1):126-129.
[16]  REID A J,JUDD M D,FOURACRE R A,et al. Simultaneous measurement of partial discharges using IEC 60270 and radio-frequency techniques[J]. IEEE Transactions on Dielectrics and Electrical Insulation,2011,18(2):444-455.
[17]  REID A J. Identification of simultaneously active partial discharge sources using combined radio frequency and IEC 60270 measurement[J]. Science, Measurement & Technology, IET,2011,5(3):102-108.
[18]  齐 波,李成榕,耿弼博,等. GIS设备绝缘子高压电极故障局部放电严重程度的诊断与评估[J]. 高电压技术,2011,37(7):1719-1727. QI Bo,LI Chengrong,GENG Bibo,et al. Severity diagnosis and assessment of the partial discharge provoked by high-voltage electrode defect on GIS insulator surface[J]. High Voltage Engineering,2011,37(7):1719-1727.
[19]  国家电网公司运维检修部.变压器类设备典型故障案例汇编(2006-2010年)[M]. 北京:中国电力出版社,2012.
[20]  任晓红,王 伟,郑健康,等. 500 kV变压器套管典型故障及分析[J]. 高电压技术,2008,34(11):2513-2516. REN Xiaohong,WANG Wei,ZHENG Jiankang,et al. Typical fault analysis of 500 kV transformer bushings[J]. High Voltage Engineering,2008,34(11):2513-2516.
[21]  马卫平,王 朔,程方晓. 油-气套管变压器现场局部放电试验及故障诊断[J]. 吉林电力,2004,171(2):35-37. MA Weiping,WANG Shuo,CHENG Fangxiao. Partial discharge testing on site and fault diagnosis for oil-gas bushing transformer[J]. Jilin Electric Power,2004,171(2):35-37.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133