Influence of Transformer Bushing Capacitive Fault on Frequency Response Curves

doi:10.7652/xjtuxb201402011

您当前的位置：

首页 >

文章列表页 >

Influence of Transformer Bushing Capacitive Fault on Frequency Response Curves

更新时间：2025-07-09

- Influence of Transformer Bushing Capacitive Fault on Frequency Response Curves
- Vol. 48, Issue 2, Pages: 62-68(2014)
- 作者机构：
  
  西安交通大学电力设备电气绝缘国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201402011
  CLC： TM835.4
- Online First：10 February 2014，
  
  Published：2014
- 稿件说明：
移动端阅览
Influence of Transformer Bushing Capacitive Fault on Frequency Response Curves[J]. 2014, 48(2): 62-68.
DOI：

Influence of Transformer Bushing Capacitive Fault on Frequency Response Curves[J]. 2014, 48(2): 62-68. DOI： 10.7652/xjtuxb201402011.

摘要

为了研究套管容性故障对频响曲线的影响

以频率响应分析法为理论基础

建立了检测变压器绕组变形的测试系统

以套管电容性故障为例

引入相关系数作为判据

对发生套管电容性故障的变压器进行测量

并从理论上分析了激励源位置分别为套管导杆和末屏时的频响曲线变化情况。试验结果表明:频率为1 kHz～1 MHz时

通过导杆注入扫频信号得到的频响曲线对套管电容性故障并不敏感

基本不会发生改变; 利用末屏注入信号时

该故障对频响曲线的影响较大

会出现频响曲线全频段的幅值升高

并在频率为1～25 kHz时最为明显

使得相关系数出现较大偏差

造成对变压器绕组状态的误判

且该变化与绕组故障时的情况并不相同

具有较强的可辨识性。

Abstract

To investigate the influence of bushing capacitive fault on frequency response curves

a testing system for detecting transformer winding deformation based on frequency response analysis(FRA)is developed. The correlation coefficient is introduced as a criterion to evaluate the influence of bushing capacitive faults on transformer winding deformation diagnosis. Taking a transformer with capacitive faults in bushing as example

the changed frequency response curves are theoretically analyzed when excitation source is located at the bushing guide-bar and tap respectively. The results show that frequency response curves are insensitive to bushing capacitive faults in frequency range of 1 kHz～1 MHz while the busing guide-bar is used as the signal injection port; the amplitudes of the frequency response curves increase significantly in the whole band

especially in the frequency range of 1～25 kHz while the tap of bushing with capacitive faults is acted as the signal injection port

which usually leads to misjudgments of transformer winding deformation by the correlation coefficients of the transfer functions

and the frequency response curves caused by bushing capacitive fault are different from those caused by winding deformation.

关键词

Keywords

references

凌愍, 王圣. 110 kV级变压器事故统计及短路故障分析[J]. 变压器, 1995(12): 33-36.

DICK E P, ERVEN C C. Transformer diagnostic testing by frequency response analysis[J]. IEEE Transactions on Power Apparatus and Systems, 1978, 97(6): 2144-2153.

王钰, 李彦明, 张成良. 变压器绕组变形检测的LVI法和FRA法的比较研究[J]. 高电压技术, 1997, 23(1): 13-15.

WANG Yu, LI Yanming, ZHANG Chengliang. The comparisonal study on LVI and FRA method of detecting winding deformation faults in transformers[J]. High Voltage Engineering, 1997, 23(1): 13-15.

姚森敬, 欧阳旭东, 林春耀. 电力变压器绕组变形诊断分析[J]. 电力系统自动化, 2005, 29(18): 95-98.

YAO Senjing, OUYANG Xudong, Lin Chunyao. Analysis on winding deformation diagnosing of power transformers[J]. Automation of Electric Power Systems, 2005, 29(18): 95-98.

RYDER S A. Diagnosing transformer faults using frequency response analysis[J]. IEEE Electrical Insulation Magazine, 2003, 19(2): 16-22.

戴文进, 刘保彬. 用频率响应法检测变压器绕组的变形[J]. 高压电器, 2004, 40(6): 464-465.

DAI Wenjin, LIU Baobin. Monitoring the distortion of transformer winding using frequency response method[J]. High Voltage Apparatus, 2004, 40(6): 464-465.

吴国跃, 李世伟, 刘多禄. 电力变压器绕组变形实测中的影响因素[J]. 高电压技术, 2001, 27(3): 81-82.

WU Guoyue, LI Shiwei, LIU Duolu. Analysis of influence factors in detecting power transformer winding deformation[J]. High Voltage Engineering, 2001, 27(3): 81-82.

何文林, 陈金法, 应高亮, 等. 频响分析法测试变压器绕组变形的研究[J]. 中国电力, 2000, 33(12): 42-45.

HE Wenlin, CHEN Jinfa, YING Gaoliang, et al. A study on detecting winding deformation in transformers with FRA method[J]. Electric Power, 2000, 33(12): 39-42.

王梦云, 薛辰东. 1995～1999年全国变压器类设备事故统计与分析[J]. 电力设备, 2001, 2(1): 11-19.

WANG Mengyun, XUE Chendong. Nation-wide statistics and analysis on power transformers faults in 1995～1999[J]. Electrical Equipment, 2001, 2(1): 11-19.

张淑珍, 傅锡年, 朱建新. 500 kV 变压器、电抗器的套管事故及障碍分析[J]. 电力设备, 2002, 3(4): 7-11.

WANG M, VANDERMAAR A J, SRIVASTAVA K D. Transformer winding movement monitoring in service-key factors affecting FRA measurements[J]. IEEE Electrical Insulation Magazine, 2004, 20(5): 5-12.

WANG M, VANDERMAAR A J, SRIVASTAVA K D. Improved detection of power transformer winding movement by extending the FRA high frequency range[J]. IEEE Transactions on Power Delivery, 2005, 20(3): 1930-1938.

HASHEMNIA N, ABU-SIADA A, MASOUM M A S, et al. Characterization of transformer FRA signature under various winding faults[C]∥Proceedings of 2012 IEEE International Conference on Condition Monitoring and Diagnosis. Piscataway, USA: IEEE, 2012: 446-449.

BAGHERI M, NADERI M S, BLACKBURN T, et al. Bushing characteristic impacts on on-line frequency response analysis of transformer winding[C]∥2012 IEEE International Conference on Power and Energy. Piscataway, USA: IEEE, 2012: 956-961.

ISLAM S M. Detection of shorted turns and winding movements in large power transformers using frequency response analysis[C]∥Power Engineering Society Winter Meeting. Piscataway USA: IEEE, 2000: 2233-2238.

王世阁. 变压器套管故障状况及其分析[J]. 变压器, 2002, 39(7): 35-40.

WANG Shige. Fault situation of transformer bushing and its analysis[J]. Transformer, 2002, 39(7): 35-40.

中国电力企业联合会. 电力变压器绕组变形的频率响应分析法 DL/T 911-2004[S/OL].[2013-08-10]. http:∥www.bzko.com/std/28209.html.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on the Thermodynamic Properties in the Anomalous Region of Supercritical Water

Turbulent Kinetic Energy Dissipation Mechanism of Supercritical Carbon Dioxide Leakage Flow in a Scallop Bionic Seal Cavity

Electrothermal Coupling Research on the Evolutionary Law of Anti-Corona Performance for High-Altitude Air-Cooled Generators

A Fast Calculation Method for Thermal Flow Fields in Transformer Windings Based on PI-DeepONet

Energy Efficiency Optimization of the Cryogenic Air Separation Process for Electronic-Grade Ultra Pure Nitrogen

Related Author

No data

Related Institution

No data

⁰