Transformer Diagnosis Based on Coupled Circuits Method Modelling
Diagnostic goal of transformers in service is to detect the winding or the core in fault. Transformers are valuable equipment which makes a major contribution to the supply security of a power system. Consequently, it is of great importance to minimize the frequency and duration of unwanted outages of power transformers. So, Frequency Response Analysis (FRA) is found to be a useful tool for reliable detection of incipient mechanical fault in a transformer, by finding winding or core defects. The authors propose as first part of this article, the coupled circuits method, because, it gives most possible exhaustive modelling of transformers. And as second part of this work, the application of FRA in low frequency in order to improve and simplify the response reading. This study can be useful as a base data for the other transformers of the same categories intended for distribution grid.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1334910Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1170
 1 S. Babic, S. Salon, C. Akyel, "The Mutual Inductance of Two Thin Coaxial Disk Coils in Air", IEEE Transactions on Magnetics, vol. 40, n┬░ 2, March 2004, pp. 822-825.
 V.P. Bui, Y. Le Floch, G. Miller and J-L. Coulomb, "A New Three- Dimensional (3D) Scalar Finite Element Method to Compute T0", IEEE Transactions on Magnetics, vol. 42, n┬░ 4, April 2006, pp. 1035-1038.
 F. Groh, D. Beck, W. Hafla, A. Buchau and W. Mr. Rucker, "Calculating Exciting Fields Using the Fast Multi- pole Method and Integral year Transformation to the Coil Surfaces", IEEE Transactions on Magnetic, vol. 41, n┬░ 5, May 2005, pp. 1384-1387.
 S. Bouissou, F. Piriou, "Comparison Between Two Formulation in Terms of Potential for the Coupling of Magnetic and Electric Circuit Equations", IEE Proceeding in Science, Measurement and Technology, vol. 141, n┬░ 6, November 1994, pp. 486-490.
 Y. Le Floch, G. Miller, C. Guerin, P. Labie, X. Brunotte and D. Boudaud, "Coupled Problem Computation of 3D Multiply Connected Magnetic Circuits and Electric Circuits", IEEE Transactions on Magnetics, vol. 39, n┬░ 3, May 2003, pp. 1725-1728.
 C.W. Trowbridge, J.K. Sykulski, "Nap Key Developments in Computational Electromagnetic and Their Attribution", IEEE Transactions on Magnetic, vol. 42, n┬░ 4, April 2006, pp. 503-508.
 V. Doirat, G. Berthiau, J. Fouladgar and A. Lefèvre, "EC. Modelling by Coupled Circuits Method Considering the Skin and Proximity Effects", the 11th International Workshop on Electromagnetic Non-destructive Evaluation (ENDE'06), Japan, June, 2006.
 J. Gyselink, R.V. Sabariego and P. Dular, "Time-Domain Homogenization of Windings in Two-Dimensional Finite Models Element", the 12th biennial Conference on Electromagnetic Field Computation (CEFC'06), Miami, Florida, the USA, April 30th-May 3rd 2006.
 Marek Florkowski et al "Transformer winding defects identification based on a high frequency method" 2007 Meas. Sci. Technol. N┬░ 18 2827-2835.
 Mr. Arturi, Mr. Ubaldini, Eddy current loss and coil inductance evaluation in dc machines by a PC-based f.e code, IEEE Transactions on Magnetic vol.27 n┬░5, 1991 pp. 4129-4132.
 Meshal Al-Shaher; Mohamed Saied "Recognition and Location of Transformer Winding Faults Using the Input Impedance" Electric Power Components and Systems, Volume 35, n┬░ 7 July 2007 , pages 785 - 802.