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Partial Discharges Within the Bars Assigned for Generators Coils

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The paper contains the analysis of PD investigations results (within the bars assigned for generators coils) obtained parallel on the ground of the electric method and acoustic emission method as well as unified eclectro-acoustic method. The analysis of results obtained by means of electric method characterizes kind and parameters of PDs. The analysis of results obtained by means of acoustic emission method contains acoustic description of AE signal and detailed analysis of amplitude distributions shapes which gives deformation processes description and PD sources location. Detailed analysis of amplitude distributions shapes has been carried out by means of two methods resultant from definition of AE descriptors and application of Kohonen neural network. The unified eclectro-acoustic method consists in parallel utilisation both methods to mutual verify obtained results.
Rocznik
Tom
Strony
283--298
Opis fizyczny
Bibliogr. 17 poz., rys.
Twórcy
autor
Bibliografia
  • 1. E. Gulski, Digital analysis of partial discharges, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 2, No. 5, pp. 822-837,1995
  • 2. T. Hucker, H. Kranz. New approach in partial discharges diagnosis and pattern recognition, IEEE Transactions on Dielectrics and Electrical Insulation, Vol 2, No.1, pp. 89-94, 1995
  • 3. R. Malewski, K. Feser, A. Claudi, Digital techniques for quality control and in service monitoring of HV power apparatus, CIGRE – 96, Paris, 1996, paper 15/21/33-03
  • 4. M. Florkowski, Partial discharge image recognition using neural network for HV insulating systems, Wydawnictwo AGH, Kraków 1996
  • 5. I. Malecki, J. Ranachowski, AE – sources, methods and application, IPPT PAN, Warszawa 1994 (in Polish)
  • 6. J. Skubis, Acoustic emission in testing of electric power equipment insulation, IPPT PAN, Warszawa 1993 (in Polish).
  • 7. A.S. Farag et al., On-line partial discharge calibration and monitoring for power transformers, Electric Power Systems Research, Vol. 50, pp. 47-54, 1999
  • 8. N. Gupta, T.S. Ramu, Estimation of partial discharges parameters in GIS using acoustic emission techniques, Journal of Sound and Vibration, Vol. 247, No. 2, pp.243-260, 2001
  • 9. H.J. van Breen et al., Standardization of on-line VHF PD measurements on turbo generators, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 9, No. 1, pp. 140-149,2002
  • 10. M. Farami, H. Borsi, E. Gockenbach,, M. Kaufhold; PD pattern recognition as a diagnostic tool for stator bar defects; ISH-2003, Delft, 2003 298 Witos F.
  • 11. F. Witos, Z. Gacek, Investigations of Partial Discharges in Generator Coil Bars by Means of Acoustic Emission: Acoustic Images and Location,. CIGRE - 2002, Paris, 2002, paper 11-101,
  • 12. F. Witos, Z. Gacek, Evaluation of PD within stator windings of generator on the ground of AE method, INSUCON-2002, Berlin, 2002, pp.320-5
  • 13. T. Kaneko et all; Characteristics of on-line PD in stator winding on starting hydrogenerator using AE detection method; ISH-2003, Delft, 2003
  • 14. Partial Discharge Detector Type TE – 571. Operating Manual, Version 4.0, 2000
  • 15. F. Witos, Z. Gacek, A. Opilski, The New Acoustic Emission Descriptor for Modeled Sources of Partial Discharge, Archives of Acoustic, Vol. 27, No 1, 2002, pp.65-77
  • 16. Z. Gacek, F. Witos, Calibrated AE method as a conception regarding evaluation of partial discharges for diagnosis of insulation, Acta Electrotechnica et Informatica, Vol.3, No 2, 2003, pp.15-21
  • 17. F. Witos, Z. Gacek, In search of AE descriptors correlated with apparent electric charge, ISH-2003, Delft, 2003
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ6-0007-0096
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