ϕ-q-n pattern analysis for understanding partial discharge phenomena in narrow voids

Partial discharge (PD) often starts from the voids enclosed in insulation and/or at interface defects and ultimately causes damage to the insulation. Partial discharges result in failure of the insulation much before the expected lifetime. In the present paper, discharge phenomena in small spherical voids enclosed inside a solid insulation and its relation to the modern phase resolved measurement techniques is investigated. A circuit level electrical model is used to simulate PD process in a narrow void present inside a solid insulation. The model has been built using the tools of OrCADpsilas PSpice software for analogue design and simulation. The inception and extinction of PD, shape of PD patterns in the form of pulse count and the amount of charge, which is released during PD for different cases, are studied and reported in this paper. Experimental results in equivalent systems have been compared with the data obtained from the simulation results.

[1]  B. K ARTHIKEYAN,et al.  A heuristic complex probabilistic neural network system for partial discharge pattern classification , 2006 .

[2]  B. Gosse,et al.  Analysis of partial discharges in a capacitor-type structure , 1996, Proceedings of Conference on Electrical Insulation and Dielectric Phenomena - CEIDP '96.

[3]  N. Hozumi,et al.  Discrimination of partial discharge patterns using a neural network , 1991 .

[4]  Suwarno,et al.  A model for electrical treeing discharges in polyethylene , 1995, Proceedings of 1995 International Symposium on Electrical Insulating Materials.

[5]  A. Pedersen,et al.  On the electrodynamics of partial discharges in voids in solid dielectrics , 1989, Proceedings of the 3rd International Conference on Conduction and Breakdown in Solid Dielectrics.

[6]  Yukio Mizuno,et al.  Swarming Pulsive Microdischarge Characteristics of Internal Void Specimen and the Factors Affecting its Occurrence , 1993 .

[7]  Y. Suzuoki,et al.  /spl phi/-q-n patterns and current shapes of partial discharges in void , 1998, Proceedings of 1998 International Symposium on Electrical Insulating Materials. 1998 Asian International Conference on Dielectrics and Electrical Insulation. 30th Symposium on Electrical Insulating Ma.

[8]  Min-Koo Han,et al.  A study on the partial discharge characteristics according to the distribution pattern of voids within an insulation , 1995, Proceedings of 1995 IEEE 5th International Conference on Conduction and Breakdown in Solid Dielectrics.

[9]  Masayuki Hikita,et al.  Measurements of partial discharges by computer and analysis of partial discharge distribution by the Monte Carlo method , 1990 .

[10]  N. Kolev,et al.  Partial discharge phenomena simulation using general-purpose analysis programs , 1998, ICSD'98. Proceedings of the 1998 IEEE 6th International Conference on Conduction and Breakdown in Solid Dielectrics (Cat. No.98CH36132).

[11]  G. Mole,et al.  Improved methods of test for the insulation of electrical equipment , 1953 .

[12]  E. D. Gadjeva,et al.  A new computer model for partial discharge phenomena investigations , 1997, Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference.

[13]  Gian Carlo Montanari,et al.  An approach to partial-discharge investigation by height-distribution analysis , 1995 .

[14]  L. Hao,et al.  Comparison of support vector machine based partial discharge identification parameters , 2006, Conference Record of the 2006 IEEE International Symposium on Electrical Insulation.

[15]  Toshikatsu Tanaka.  PD pulse distribution pattern analysis , 1994, Proceedings of 1994 4th International Conference on Properties and Applications of Dielectric Materials (ICPADM).

[16]  Bernd Freisleben,et al.  Using counterpropagation neural networks for partial discharge diagnosis , 1998, Neural Computing & Applications.

[17]  L. Niemeyer,et al.  Measurement and simulation of PD in epoxy voids , 1995 .

[18]  C. Heitz,et al.  A generalized model for partial discharge processes based on a stochastic process approach , 1999 .

[19]  M. G. Danikas,et al.  Development of partial discharge model, simulation and measurement , 1999, 1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319).

[20]  Gian Carlo Montanari,et al.  Comparing pulse-height and pulse-shape analysis of partial discharge signals , 1997, IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena.

[21]  R. Bartnikas,et al.  Detection of partial discharges (Corona) in electrical apparatus , 1990 .

[22]  Stephen J. Dodd,et al.  A Deterministic Model for the Growth of Non-conducting Electrical Tree Structures , 2003 .

[23]  Massimo Lazzaroni,et al.  PD recurrence in cavities at different energizing methods , 2004, IEEE Transactions on Instrumentation and Measurement.

[24]  E. Gulski,et al.  Classification of partial discharges , 1993 .

[25]  I. J. Kemp,et al.  Partial discharges in HV machines; initial considerations for a PD specification , 1992 .

[26]  A. J. Schwab,et al.  Modelling of partial discharge development in electrical tree channels , 2003 .

[27]  J. Devins.  The physics of partial discharges in solid dielectrics , 1984, Conference on Electrical Insulation & Dielectric Phenomena - Annual Report 1984.

[28]  D. W. Gross,et al.  Characteristics of phase resolved partial discharge pattern in spherical voids , 1998, 1998 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.98CH36257).

[29]  E. Gulski,et al.  Pattern analysis of partial discharges in SF/sub 6/ GIS , 1998 .

[30]  Shanmugam Kumar,et al.  Partial discharge pulse sequence analyses-a new representation of partial discharge data , 1999 .

[31]  C. Heitz.  Physical modelling and mathematical description of PD processes with application to PRPD patterns , 1999 .

[32]  H. G. Sedding,et al.  Partial discharge pulse phase patterns on operating motors and generators , 1995, Proceedings of 1995 International Symposium on Electrical Insulating Materials.

[33]  E. D. Gadjeva,et al.  An approach to develop a partial discharge investigation , 1999, Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.99CH37035).

[34]  Kai Wu,et al.  The effect of conductivity distribution in tree channel on PD behavior in electrical tree , 1998, Proceedings of 1998 International Symposium on Electrical Insulating Materials. 1998 Asian International Conference on Dielectrics and Electrical Insulation. 30th Symposium on Electrical Insulating Ma.

[35]  Meijer,et al.  Pattern Analysis of Partial Discharges in SFG CIS , 2004 .

[36]  S. Chakravorti,et al.  FDM based simulation of PD patterns due to narrow void considering stochastic parameters , 2006, 2006 IEEE Power India Conference.

[37]  J. H. Mason.  The deterioration and breakdown of dielectrics resulting from internal discharges , 1951 .

[38]  G. Adamidis,et al.  Partial discharges in epoxy resin voids and the interpretational possibilities and limitations of Pedersen's model , 1997 .

[39]  Suwarno,et al.  Partial discharges due to electrical treeing in polymers: phase-resolved and time-sequence observation and analysis , 1996 .

[40]  J. Devins,et al.  The 1984 J. B. Whitehead Memorial Lecture the Physics of Partial Discharges in Solid Dielectrics , 1984, IEEE Transactions on Electrical Insulation.

[41]  T. Tanaka.  Partial discharge pulse distribution pattern analysis , 1995 .