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Partial Discharge Mechanism and Current Waveforms in Electronegative Gases and Gas Mixtures

  • H. Okubo
  • T. Ishida
  • T. Yamada
  • N. Hayakawa

Abstract

Partial discharge (PD) measurement is expected to be an effective method for electrical insulation diagnosis and breakdown prediction of the power apparatus. In order to establish the reliable insulation diagnostic techniques, physical mechanism of PD phenomena are required to be clarified. Especially, electronegative gases and gas mixtures are of interest from the viewpoint of high insulation performance due to corona stabilization effect. Although many investigations1,2 have been so far carried out, PD phenomena have not yet been fully understood.

Keywords

Partial Discharge Electron Avalanche Critical Electric Field Critical Electric Field Strength High Insulation Performance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    O. Farish, O. E. Ibrahim and A. Kurimoto, Prebreakdown Corona Processes in SF6 and SF6/N2 Mixtures, 3rd International Symposium on High Voltage Engineering, No.31.15 (1979).Google Scholar
  2. 2.
    I. Gallimberti, Breakdown Mechanisms in Electronegative Gases, Gaseous Dielectrics V, pp.61–79 (1987).Google Scholar
  3. 3.
    H. Okubo, T. Takahashi, T. Yamada and M. Hikita, Discrimination of Streamer / Reader Type Partial Discharge in SF6 Gas Based on Discharge Mechanism, Gaseous Dielectrics VIII, pp.269–275 (1998).CrossRefGoogle Scholar
  4. 4.
    T. Yamada, T. Takahashi, T. Toda, and H. Okubo, Generation Mechanism of Partial Discharge in Different Kind of Pure Gases and Gas Mixtures with SF6, Gaseous Dielectrics VIII, pp. 125–131 (1998).CrossRefGoogle Scholar
  5. 5.
    H. Okubo, T. Yamada, T. Takahashi and T. Toda, Partial Discharge Inception and Breakdown Characteristics in Gas Mixtures with SF6, Gaseous Dielectrics VIII, pp.289–294 (1998).CrossRefGoogle Scholar
  6. 6.
    N. Hayakawa, T. Ishida, T. Yamada, T. Ueda and H. Okubo, Gas Pressure Dependence of Partial Discharge and Breakdown Characteristics in N2/O2 Gas Mixtures, 13th International Conference on Gas Discharges and Their Applications, Vol.1, pp.401–404 (2000).Google Scholar
  7. 7.
    M. Hikita, A. Suzuki, T. Kato, N. Hayakawa and H. Okubo, Phase Dependence of Partial Discharge Current Pulse Waveforms and Its Frequency Characteristics in SF6 Gas, IEEE International Symposium on Electrical Insulation, Vol.1, pp.103–106 (1996).Google Scholar
  8. 8.
    R. J. Van Brunt and J. T. Herron, Fundamental Processes of SF6 Decomposition and Oxidation in Glow and Corona Discharges, IEEE Transactions on Electrical Insulation, Vol.25, No.l, pp.75–94 (1990).CrossRefGoogle Scholar
  9. 9.
    L. G. Christophorou and L. A. Pinnaduwage, Basic Physics of Gaseous Dielectrics, IEEE Transactions on Electrical Insulation, Vol.25, No.l, pp.55–74 (1990).CrossRefGoogle Scholar
  10. 10.
    S. R. Hunter, J. G. Carter and L. G. Christophorou, Electron Attachment and Ionization Processes in CF4, C2F6, C3F8, and n-C4F10, Journal of Chemical Physics, Vol.86, No.2, pp.693–703 (1987).CrossRefGoogle Scholar
  11. 11.
    R. D. Hake, Jr. and A. V. Phelps, Momentum-Transfer and Inelastic-Collision Cross Sections for Electron in O2, CO, and CO2, Physical Review, Vol.158, No.l, pp.70–84 (1967).CrossRefGoogle Scholar
  12. 12.
    M. A. Harrison and R. Geballe, Simultaneous Measurement of Ionization and Attachment Coefficients, Physical Review, Vol.91, No.l, pp. 1–7 (1953).CrossRefGoogle Scholar
  13. 13.
    H.Jungblut, D.Hansen and W.F.Schmidt, Ion-ion Recombination in Electronegative Gases, IEEE Transactions on Electrical Insulation, Vol.24, No.2, pp.343–348 (1989).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • H. Okubo
    • 1
  • T. Ishida
    • 1
  • T. Yamada
    • 1
  • N. Hayakawa
    • 1
  1. 1.Department of Electrical EngineeringNagoya UniversityNagoyaJapan

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