Model for partial discharges associated with treeing breakdown: II. tree growth affected by PDs

The model for partial discharges (PDs) in tree channels indicates that PDs in an electrical tree are inclined to be induced and concentrated near the needle tip, and the total field distribution is dynamically influenced by the PDs. In view of the effects of PDs on tree growth, a new model for tree growth is put forward. Tree growth is related to both the damage caused by PDs and by the local field. In the early stage of tree growth, the damage by PDs is concentrated near the needle tip, but the damage by the local field is inclined to be higher at tree tips. By using this model, various experimental phenomena can be explained.

[1]  J. Fothergill.  Filamentary electromechanical breakdown , 1991 .

[2]  H. Zeller,et al.  Electrofracture mechanics of dielectric aging , 1984 .

[3]  K. Kudo,et al.  Three-Dimensional Reconstructed Image of Electrical Tree using Serial Sectioning Method and its Fractal Characteristics , 1994 .

[4]  H. R. Zeller,et al.  A fractal model of dielectric breakdown and prebreakdown in solid dielectrics , 1986 .

[5]  L. Dissado,et al.  Simulation of the effect of barriers upon electrical tree propagation , 1992 .

[6]  Dalma Novak,et al.  Full-duplex broadband millimetre-wave optical transport system for fibre-wireless access , 1997 .

[7]  Sweeney,et al.  Physical model for breakdown structures in solid dielectrics. , 1993, Physical review. B, Condensed matter.

[8]  G. Stevens,et al.  Stochastic modelling of electrical treeing: fractal and statistical characteristics , 1990 .

[9]  R. Densley,et al.  An Investigation into the Growth of Electrical Trees in XLPE Cable Insulation , 1979, IEEE Transactions on Electrical Insulation.

[10]  D. Auckland,et al.  Mechanical aspects of electrical treeing in solid insulation , 1996 .

[11]  J. V. Champion,et al.  Analysis and modelling of electrical tree growth in synthetic resins over a wide range of stressing voltage , 1994 .

[12]  M. Fujii,et al.  Fractal character of DC trees in polymethylmethacrylate , 1991 .

[13]  N. Yoshimura,et al.  Diagnostics of treeing degradation by image processing , 1991 .

[14]  A. Pedersen,et al.  Formulation of the streamer breakdown criterion and its application to strongly electronegative gases and gas mixtures , 1984 .

[15]  John C. Fothergill,et al.  A discharge-avalanche theory for the propagation of electrical trees. A physical basis for their vol , 1994 .

[16]  J. V. Champion,et al.  The effect of voltage and material age on the electrical tree growth and breakdown characteristics of epoxy resins , 1995 .

[17]  Tatsuki Okamoto,et al.  Simultaneous Measurement of Microscopic Image and Discharge Pulses at the Moment of Electrical Tree Initiation , 1988 .

[18]  Kai Wu,et al.  A new fractal model for describing time-dependence of treeing growth , 1995, Proceedings of 1995 International Symposium on Electrical Insulating Materials.

[19]  J. V. Champion,et al.  The correlation between the partial discharge behaviour and the spatial and temporal development of electrical trees grown in an epoxy resin , 1996 .

[20]  T. Mizutani,et al.  Model for partial discharges associated with treeing breakdown: III. PD extinction and re-growth of tree , 2000 .

[21]  Yasuo Suzuoki,et al.  Model for partial discharges associated with treeing breakdown: I. PDs in tree channels , 2000 .

[22]  L. Pietronero,et al.  Fractal Dimension of Dielectric Breakdown , 1984 .

[23]  Yasuo Suzuoki,et al.  A novel physical model for partial discharge in narrow channels , 1999 .

[24]  C. Mauoux,et al.  Contribution of partial discharges to electrical breakdown of solid insulating materials , 1995 .

[25]  N. Wiegart,et al.  The mechanism of leader breakdown in electronegative gases , 1989 .

[26]  Toshikatsu Tanaka,et al.  Charge transfer and tree initiation in polyethylene subjected to AC voltage stress , 1992 .

[27]  Suwarno,et al.  Effects of frequency and applied voltage on electrical treeing discharges , 1995, Proceedings of 1995 IEEE 5th International Conference on Conduction and Breakdown in Solid Dielectrics.

[28]  L. A. Dissado,et al.  Propagation of electrical tree structures in solid polymeric insulation , 1997 .

[29]  K. Horii,et al.  The Effect of Absorbed Oxygen on Electrical Treeing in Polymers , 1985, IEEE Transactions on Electrical Insulation.

[30]  L. A. Dissado,et al.  Physical origin for differences in electrical tree structures , 1994, Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP'94).

[31]  T. Yoshimitsu,et al.  Electrical Failure Properties of Cast Epoxy Resins , 1981, IEEE Transactions on Electrical Insulation.