대한전기학회논문지:전기물성ㆍ응용부문C (The Transactions of the Korean Institute of Electrical Engineers C)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

유중 부분방전 펄스 특성을 이용한 TF 분석에 대한 고찰

Considerations on the TF Anal,ysis using Partial Discharge Pulse Characteristics in Oil

  • 김정태 (대진대 전기정보시스템공학과)
  • 발행 : 2005.11.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, it was investigated the characteristics of PD(partial discharge) pulse shapes in oil and the possibility of TF(Time-Frequency) analysis for the discrimination of air corona in on-site PD measurement of oil transformers. For the purpose, single and multiple discharges combined with oil discharges and air corona were generated and measured by use of artificial models through the HFPD pulse detector and the oscilloscope. PD pulse shapes were different according to the type of defects, especially including air corona- pulses. Also, through the TF analysis, data clusters could be classified each other in the TF Map, even in the case of multiple discharges. Therefore, it is known that TF analysis could be aprlied for the improvement of on-site PD measurement in oil transformers.

키워드

참고문헌

  1. A.Cavallini et al, 'A New Approach to the Dianosis of Solid Insulation Systems Based on PD Signal Inference', IEEE Electrical Insulation Magazine, Vol.19, No.2, pp.23-30, 2003 https://doi.org/10.1109/MEI.2003.1192033
  2. A.Cavallini et al, 'Advanced PD Interference in On field Measurements. Part 1 : Noise Rejection', IEEE Trans on DEI, Vol.10, No.2, pp.216-224, 2003 https://doi.org/10.1109/TDEI.2003.1194102
  3. H.J. van Breen, E. Gulski, J.J. Smit, H.F.A. Verhaart and W. de Leeuw, 'Performance analysis of different on-line PD measurement techniques for usage on Turbo Generators', XIIIth International Symposium on High Voltage Engineering (ISH 2003), Diagnostics and on-line monitoring for CBM Session, Delft, Netherlands, August 25-29, 2003
  4. W. Krause, H.-G. Kranz, 'Pulse Preclassification for online PD Noise Suppression based on realtime Pulse Shape Identification', 14th International Symposium on High Voltage Engineering, G-002, Tsinghua University, Beijing, China, August 25-29, 2005
  5. K. Raja, F. Devaux, and S. Lelaidier, 'Recognition of Discharge Sources Using UHF PD Signatures', IEEE Electrical Insulation Magazine, Vol. 18, No.5, pp.8-14, 2002 https://doi.org/10.1109/MEI.2002.1044316
  6. M.D. Juddl, G.P. Clearyl and S. Meijer, 'Testing UHF partial discharge detection on a laboratory based power transformer', 13th International Symposium on High Voltage Engineering, TU Delft, NETHERLANDS, 25-29 August 2003
  7. M. A. Elborki, P. A. Crossley, Z. D. Wang, A. Darwin and G. Edwards, 'Detection and Characterisation of Partial Discharges in Transformer Defect Models', 2002 IEEE Power Engineering Society Winter Meeting, Vol.1, pp.405-410, 2002 https://doi.org/10.1109/PESS.2002.1043266
  8. K. Raja and T. Floribert, 'Source Characterization of Discharges in Transformers using UHF PD Signatures', 2002 IEEE Power Engineering Society Winter Meeting, Vol.2, pp.1383-1388, 2002 https://doi.org/10.1109/PESW.2002.985242
  9. G. P. Cleary and M. D. Judd, 'An Investigation of Discharges in Oil Insulation using UHF PD Detection', 14th Int'l Conf. on Dielectric Liquids(ICDL 2002), pp.341-344, 2002 https://doi.org/10.1109/ICDL.2002.1022764