전기학회논문지P (The Transactions of the Korean Institute of Electrical Engineers P)

  • 제57권2호
  • /
  • Pages.176-180
  • /
  • 2008
  • /
  • 1229-800X(pISSN)
  • /
  • 2586-7792(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

UHF 기술을 이용한 온라인 부분방전 모니터링

On-line Insulation Diagnostic by PD Monitoring Field Practical of UHF Technique for On-line PD Monitoring

  • 오용 (동신대학교 전기전자공학과) ;
  • 최용성 (동신대학교 전기공학과) ;
  • 황종선 (전남도립대학 컴퓨터응용전기과) ;
  • 이경섭 (동신대학교 전기공학과)
  • 발행 : 2008.06.01
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초록

A field-oriented UHF system for on-line PD monitoring of transformers is designed, which has been installed inside the oil tank of transformer in a substation by two ways: on-line installing mode through the oil-valve and pre-installing mode through the man hole/hand hole cover. This system has successfully captured long intermittent discharge signals that hadn't been detected through conventional techniques, and solved the problem successfully. The results demonstrate that UHF technique has great advantages for on-line PD monitoring of transformers. By adopting the peak detection technique, it becomes easy and effective for the transplantation of the phase-resolved pattern recognition technique from conventional method to UHF method, and then to realize continuous on-line monitoring, source characterization and trending analysis.

키워드

참고문헌

  1. Okubo H, Suzuki, "A Frequency component of current pulse waveform in partial discharge measurement", 9th ISH [C] Graz, August 25-29, 1995
  2. M.D. Judd, O. Farish, B.F. Hampton, "Broadband couplers for UHF detection of partial discharge in gas-insulated substations", IEE Proc. Sci. Meas. Technol., pp. 237-243, Vo1.142, No.3 May 1995 https://doi.org/10.1049/ip-smt:19951699
  3. M.D. Judd, "Transient calibration of electric field sensors, Science, Measurement and Technology", IEE Proceedings, Volume: 146 Issue: 3, Pagers): 113, 116, May 1999
  4. M.D. Judd, O. Farish, "A pulsed GTEM system for UHF sensor calibration", IEEE Trans. Instrumentation and Measurement, Vol. 47, no. 4, pp.875-880, August 1998 https://doi.org/10.1109/19.744636
  5. M.D. Judd, O. Farish, J.S. Pearson, "UHF couplers for gas-insulated substations: a calibration technique, Science, Measurement and Technology", IEE Proceedings, Volume: 144 Issue: 3, Pagels): 117 -122, May 1997
  6. M. Knapp, R. Feger, K. Feser, A Breuer, "Application of the CIGRE-sensitivity verification for UHF PD detection in three-phase GIS, High Voltage Engineering Symposium", 22-27, Conference Publication No. 467, IEE, 1999
  7. L. Yang, MD. Judd, "Propagation characteristics of UHF signals in transformers for locating partial discharge sources", Proc. 13th Int. Symposium on High Voltage Engineering (ISH), Delft, 2003
  8. A.R. Convery, M.D. Judd, "Measurement of Propagation characteristics for UHF signals in transformer insulation materials", Proc. 13th Int. Symposium on High Voltage Engineering (ISH), Delft, 2003
  9. W.R. Rutgers and Y.H. Fu, "UHF PD-Detection in a power transformer", 10th International Symposium on High Voltage Engineering, pp. 219-222, August 25-29, 1997
  10. M.D. Judd, O. Farish, and B.F. Hampton, "The Excitation of UHF signals by partial discharges in GIS", IEEE Trans. Dielect. Elect. Insulation, Vol.3, pp. 213-228, Apr. 1996 https://doi.org/10.1109/94.486773
  11. Judd, M.D., Hampton, B.F., Farish, O., "Modeling partial discharge excitation of UHF signals inwaveguide structures using Green's functions", Science, Measurement and Technology, IEE Proceedings-, Volume: 143 Issue: 1, Pagers): 63 -70, Jan. 1996
  12. M.D. Judd, "Using finite difference time domain techniques to model electrical discharge phenomena" , Electrical Insulation and Dielectric Phenomena, 2000 Annual Report Conference on, Volume: 2, Pagels): 622 -625 Vol.2, Oct. 2000
  13. Xu Gaofeng et al, "A Calculational Method of transient electric field excited by partial discharge in gas insulated substation using Dyadic Green Function", Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on , Volume: 3, Pagers): 1438 -1441, Vol.3, Oct. 2002
  14. Raja, K., Devaux, F., Lelaidier, S., "Recognition of discharge sources using UHF PD signatures", Electrical Insulation Magazine, IEEE , Volume: 18 Issue: 5, pp: 8 -14, Sept. -Oct. 2002