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2011 | 120 | 4 | 767-771
Article title

Mathematical Model and Numerical Analysis of~AE Wave Generated by Partial Discharges

Content
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Languages of publication
EN
Abstracts
EN
Paper presents definition of a mathematical model describing acoustic emission signals generated by partial discharges occurring in oil immersed electric power transformers. Time runs, power spectral density graphs and spectrograms of acoustic emission signals generated in experiments, performed under laboratory conditions, and of equivalent signals, calculated on the basis of the mathematical model, are presented. Furthermore, results of numerical simulations of acoustic pressure distribution inside a tank filled with insulation oil are presented in the paper. In the center of the tank acoustic emission wave sources were placed, each generating signals described by the model developed.
Keywords
EN
Publisher

Year
Volume
120
Issue
4
Pages
767-771
Physical description
Dates
published
2011-10
Contributors
author
  • Electric Power Institute, Faculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, S. Mikołajczyka 5, 45-271 Opole, Poland
author
  • Electric Power Institute, Faculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, S. Mikołajczyka 5, 45-271 Opole, Poland
author
  • Electric Power Institute, Faculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, S. Mikołajczyka 5, 45-271 Opole, Poland
References
  • 1. F. Witos, A. Olszewska, Acta Phys. Pol. A 118, 1267 (2010)
  • 2. J. Skubis, Acoustical Emission in Investigations of Isolators Systems, IPPT-PAN, Warsaw 1993 (in Polish)
  • 3. D. Wotzka, Ph.D. Thesis, Opole University of Technology, 2011 (in Polish)
  • 4. D. Wotzka, T. Boczar, D. Zmarzły, Acta Phys. Pol. A 116, 428 (2009)
  • 5. D. Wotzka, T. Boczar, D. Zmarzły, Acta Phys. Pol. A 118, 1272 (2010)
  • 6. J.C. Lagarias, J.A. Reeds, M.H. Wright, P.E. Wright, SIAM J. Optim. 9, 112 (1998)
  • 7. A. Opilski, I. Malecki, Characteristics and Classification of Acoustical Emission Signals, Ed. J. Ranachowski, IPPT-PAN, Warsaw 1994 (in Polish)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv120n444kz
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