Detection of transformer winding radial deformations by using UWB pulses and DWT

The on-line monitoring of transformer winding radial deformations using Ultra-Wideband (UWB) sensors and Discrete Wavelet Transform (DWT) has been presented in this paper. The measurements on a simplified model of the transformer winding demonstrate the high sensitivity of the proposed method to detect the winding radial deformation.

[1]  H. Henao,et al.  Diagnosis of Broken Bar Fault in Induction Machines Using Discrete Wavelet Transform without Slip Estimation , 2007, 2007 IEEE Industry Applications Annual Meeting.

[2]  D. K. Xu,et al.  On-line monitoring of winding deformation of power transformer , 2001, Proceedings of 2001 International Symposium on Electrical Insulating Materials (ISEIM 2001). 2001 Asian Conference on Electrical Insulating Diagnosis (ACEID 2001). 33rd Symposium on Electrical and Ele.

[3]  J. Antonino-Daviu,et al.  Application and Optimization of the Discrete Wavelet Transform for the Detection of Broken Rotor Bars in Induction Machines , 2006 .

[4]  I.I. Immoreev,et al.  Ultra wideband radar systems: advantages and disadvantages , 2002, 2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580).

[5]  Sinan Gezici,et al.  Ultra-wideband Positioning Systems: Theoretical Limits, Ranging Algorithms, and Protocols , 2008 .

[6]  Luis Romeral,et al.  Fault Detection in Induction Machines Using Power Spectral Density in Wavelet Decomposition , 2008, IEEE Transactions on Industrial Electronics.

[7]  K. Feser,et al.  Transfer Function Method to Diagnose Axial Displacement and Radial Deformation of Transformer Winding , 2002, IEEE Power Engineering Review.

[8]  T. Leibfried,et al.  Monitoring of power transformers using the transfer function method , 1999 .

[9]  R.J. Fontana,et al.  Recent system applications of short-pulse ultra-wideband (UWB) technology , 2004, IEEE Transactions on Microwave Theory and Techniques.

[10]  Luis Romeral,et al.  Wavelet and PDD as fault detection techniques , 2010 .

[11]  T. Leibfried,et al.  On-line monitoring of transformers by means of the transfer function method , 1994, Proceedings of 1994 IEEE International Symposium on Electrical Insulation.

[12]  K. Feser,et al.  Procedures for detecting winding displacements in power transformers by the transfer function method , 2004, IEEE Transactions on Power Delivery.

[13]  George Heiter,et al.  A Historic Review of WB Radar and Communications and Future Directions (invited) , 2003 .

[14]  T. Leibfried,et al.  Off-line- and on-line-monitoring of power transformers using the transfer function method , 1996, Conference Record of the 1996 IEEE International Symposium on Electrical Insulation.

[15]  Caixin Sun,et al.  Study on the recognition of transformer winding deformation by using wavelet transform in the LVI method , 2002, Proceedings. International Conference on Power System Technology.

[16]  M. Riera-Guasp,et al.  Validation of a new method for the diagnosis of rotor bar failures via wavelet transform in industrial induction machines , 2006, IEEE Transactions on Industry Applications.

[17]  A. S. Morched,et al.  Analysis of internal winding stresses in EHV generator step-up transformer failures , 1996 .