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THE EFFECT OF ENVIRONMENTAL FACTORS ON THE PERFORMANCE OF POLYESTER OUTDOOR INSULATORS

Journal Name:

  • Istanbul University Journal of Electrical & Electronics Engineering

Publication Year:

  • 2003
Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
Surface tracking is one of the severe degradation mechanisms observed on polymeric insulators. There are too many factors associated with the degradation process, hence it is not easy to make an estimate about the useful service life of an insulator. However it is possible to reduce the variability observed in the tracking initiation times and tracking patterns by testing the samples in laboratory under predefined conditions. In this study, by using the ASTM D 2303 Inclined Plane Tracking Test method the effects of Mechanical effect(compressive stress and tensile stress), ultraviolet (UV) radiation and wind pressure from different positions with respect to the surface of the sample under test have been investigated in detail. All samples have been prepared by using polyester without any accelarator. In all cases tracking initiation times were reduced significantly depending on the external conditions. UV radiation and wind pressure caused carbonised tracking patterns with wide branches around the high voltage electrode.
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  • 2
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  • English

REFERENCES

References: 

[1] D. P. Augood, ‘Dielectric Aging – Overview and Comment’, Proceedings of 1978 IEEE International Symposium on EL, pp. 17-21, 1978.
[2] H. R. Zeller, ‘Breakdown and Prebreakdown phenomena in solid Dielectrics’, Proceedings of 2nd International Conference on Conduction and breakdown in Solid Dielectrics, pp.98-109, 1986.
[3] L. Simoni, G. Mazzanti, and G. C. Montanari, ‘Life Model for Insulating Matarials in Combined-stress Condition’, Proceeding of 1994 ICPADM Conference, pp. 827-832, 1994.
[4] T. W. Dakin, ‘Electrical Insulation Deterioration’, Electrotechnology, Vol.3, pp129- 130, 1960.
[5] P. Crine, J. L. Parpal and C. Dang, ‘A New Approach to the Electric Aging of Dielectrics’, Proceedings of 1989 Conference on Electrical Insulation and Dielectric Phenomena, pp. 161-167, 1989.
[6] P. Crine, ‘Applications of the Rate Theory to the Understanding of Various Dielectric Aging Mechanisms’, Proceedings of the Workshop on Multifactor Aging Mechanisms and Models, CEIDP92, Victoria, 1992.
[7] G. C. Montanari and L. Simoni, ‘Aging Phenomenology and Modeling’, IEEE Transactions on El, Vol.28, pp.755-776, 1993.
[8] R. Houlgate, ‘Outdoor Testing of non Ceramic Insulators’, IEE Colloquium on a Review of Outdoor Insulation Materials, pp.8.1-8.4, 1996.
[9] B. Jubb, ‘Current overseas practice wirh transmission at 132kV and above’, IEE Colloquium on a review of outdoor insulation materials, pp 1.1-1.6, 1996.
[10] M. Uğur, B. R. Varlow, ‘Analysing and Modelling the 2D surface tracking patterns of polymeric insulation materials’, IEEE Transactions on Dielectrics and Electrical Insulation, Vol 5, No 6, pp 824-828, 1998.
[11] A. Kuntman, T.Yılmaz, A.Güngör, B.M.Baysal, ‘A New Polyimide Film for VLSI and its Electrical Characterization’, IEEE Transactions on Dielectrics and Electrical Insulation, Vol.5, pp296-300, 1998.
[12] R.Gorur,J.Montesinos,L.Varadadesikan, S.Simmons, M.Shah, ‘A rapid test method for evaluating the tracking and erosion resistance of polymeric outdoor insulating materials’, CEIDP, pp.402-405, 1997.
[13] Crine, and A. K. Vijh, ‘A Molecular Approach to the Physicochemical Factors in the Electrical Breakdown of Polymers’, Applied Physics Communications, Vol.5, pp. 139-163, 1985.
[14] H. J. Wintle, ‘Conduction Processes in Polymers’, in Engineering Dielectrics, Vol. IIA, R. Bartnikasand R. M. Eichhorn,
948 The Effect Of Environmental Factors On The Performance Of Polyester Outdoor Insulators
Mukden Uğur, Ayten Kuntman, Ahmet Merev
Editors, pp. 239-354, ASTMSpecial Technical Publication 763, 1983.
[15] C. C. Ku and R. Liepins, ‘Electrical Properties of polymers’, Hanser Publishers, Munich, 1987.
[16] E. A. Cherney, ‘Non Ceramic Insulator-A Simple Design that Requires Careful Analysis’, Electrlcal Insulation Magazine, Vol.12, No.3, pp.7-15, 1996.
[17] M. A. Sens, A. L. Tan, H. Gleizer, J. H. Mason, ‘Factors Which Affect the Tracking resistance of polymeric insulating materials’, EHV Tech, pp.136-143, 1984.
[18] M. Uğur, A. Kuntman, A. Merev, ‘Investigation the Effect of Environmental Factors on the Performance of Polymeric Outdoor Insulation’, Conference on Electrical Insulation and Dielectrics Phenomena, October 1999.
[19] ASTM D2303, ‘Standard test methad for liquid contaminant, inclined plane tracking and Erosion of Insulating Materials’, Annual book of ASTM standards, Vol.10.01, pp.504-513, 1999.
[20] ‘Standard Test Methods for Liquid Contaminant, inclined plane tracking and erosion of insulating Materials’, ASTM 2303, pp.258-270, 1983.
[21] M. Kurtz, ‘Comparison of Tracking Test Methods’, Electrical Insulation, Vol. 6., No2, pp.76-81, 1971.
[22] J. F. Watson, J. H. Mason, A. C. Lynch, ‘Assessing Materials for Use as Outdoor Insulation’, ISH 3, pp.1-4, 1979.
[23] B.R.Varlow, D.W.Auckland, ‘The influence of mechanical factors on electrical treeing’, IEEE Transactions on Dielectrics and Electrical Insulation, Vol.5, No.5, pp.761-766, 1998.
[24] E.David, J.L.Parpal, J.P.Crine, ‘Influence of internal mechanical stress and strain on electrical performance of polyethylene’, IEEE Transactions on Dielectrics and Electrical Insulation,Vol.3, No.2, pp.248-257.
[25] M. Uğur, O.N. Uçan, A. Kuntman, A. Özmen and A. Merev, ‘Analysing the 2-D Surface Tracking Patterns by Using Cellular Neural Networks’, Conference on Electrical Insulation and Dielectrics Phenomena, October 1999.
[26] A.Kuntman, M.Uğur, A.Merev, ‘A Study on the Investigation of Surface Tracing
in Polyester Insulators’, Eleco'99 International Conference on Electrical and Electronics Engineering, 84-88, December 1999.

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