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Number of results
2015 | 128 | 3 | 306-309
Article title

Diagnostics of the Core Mechanical Construction Based on Vibroacoustic Measurements and Distribution of Temperature Field in Transformer Magnetic Circuit

Content
Title variants
Languages of publication
EN
Abstracts
EN
Subject matter of this article concerns the results of research works on the development and use of the vibroacoustic method to evaluate technical state of transformer cores. The article presents obtained measurement results of transformer mechanical vibration for two cases of its operation: with twisted and loosened core. In order to demonstrate negative effects of operating a transformer with a loosened core, this publication presents thermographic images showing temperature distribution on its magnetic core. The article characterises the examined transformer, employed measurement system and methodology of the completed experiment. The vibroacoustic and thermographic measurements were carried out during idle work of the transformer. Core vibration was registered for three measurement axes: 0X, 0Y and 0Z. Completed tests have proven that loosened screws pressing the core cause evident increase in the value of magnetic core vibration acceleration. At the same time, the temperature rises by more than 25%.
Keywords
EN
Publisher

Year
Volume
128
Issue
3
Pages
306-309
Physical description
Dates
published
2015-09
received
2015-05-09
(unknown)
2015-07-20
Contributors
author
  • Faculty of Electrical Engineering, Automatic Control and Computer Science, Opole University of Technology, Prószkowska 76, 45-758 Opole, Poland
author
  • Faculty of Electrical Engineering, Automatic Control and Computer Science, Opole University of Technology, Prószkowska 76, 45-758 Opole, Poland
author
  • Faculty of Electrical Engineering, Automatic Control and Computer Science, Opole University of Technology, Prószkowska 76, 45-758 Opole, Poland
References
  • [1] V. Mijailović, El. Power Syst. Res. 80, 987 (2010), doi: 10.1016/j.epsr.2010.01.002
  • [2] H. Ding, R. Heywood, J. Lapworth, S. Ryder, in: Int. Conf. Euro TechCon 2009, Stretton 2009, p. 1 http://slideshare.net/snehangshughosh794/why-transformers-failfinal
  • [3] S.S. Rajurkar, A.R. Kulkami, J.G. Nandapurkar, in: Proc. 16th National Power Syst. Conf., India, 2010, p. 180
  • [4] A.J.M. Cardoso, L.M.R. Oliveira, Int. J. Comadem 2, 5 (1999)
  • [5] CIGRE-WG 12-05, An International Survey on Failures in Large Power Transformers in Service, Electra 88, 21 (1983)
  • [6] T. Suwanasri, J. Haema, R. Rhadungthin, C. Suwanarsi, in: ECTI-CON 2009, Int. Conf. 1, 18 (2009), doi: 10.1109/ECTICON.2009.5136957
  • [7] S. Borucki, IEEE Trans. Power Deliv. 27, 670 (2012), doi: 10.1109/TPWRD.2012.2185955
  • [8] S. Borucki, Acta Phys. Pol. A 120, 571 (2011) http://przyrbwn.icm.edu.pl/APP/PDF/120/a120z4p01.pdf
  • [9] S. Borucki, A. Cichoń, Przegląd Elektrotechniczny 86, 45 (2010) (in Polish)
  • [10] P. Frącz, Acta Phys. Pol. A 120, 604 (2011) http://przyrbwn.icm.edu.pl/APP/PDF/120/a120z4p09.pdf
  • [11] M. Szmechta, T. Boczar, P. Frącz, Acta Phys. Pol. A 120, 744 (2011) http://przyrbwn.icm.edu.pl/APP/PDF/120/a120z4p39.pdf
  • [12] A. Cichoń, P. Frącz, D. Zmarzły, Acta Phys. Pol. A 120, 585 (2011) http://przyrbwn.icm.edu.pl/APP/PDF/120/a120z4p05.pdf
  • [13] D. Wotzka, T. Boczar, P. Frącz, Acta Phys. Pol. A 120, 767 (2011) http://przyrbwn.icm.edu.pl/APP/PDF/120/a120z4p44.pdf
  • [14] A. Cichoń, S. Borucki, D. Wotzka, M. Szmajda, Acta Phys. Pol. A 122, 804 (2012) http://przyrbwn.icm.edu.pl/APP/PDF/122/a122z5p04.pdf
  • [15] S. Borucki, T. Boczar, A. Cichoń, Arch. Acoust. 32, Supplement, 291 (2007)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv128n312kz
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