Analysis of Electric Field and Potential Distributions along Surface of Silicone Rubber Insulators under Various Contamination Conditions Using Finite Element Method

Authors: B. Marungsri, W. Onchantuek, A. Oonsivilai, T. Kulworawanichpong

Abstract:

This paper presents the simulation results of electric field and potential distributions along surface of silicone rubber polymer insulators under clean and various contamination conditions with/without water droplets. Straight sheds insulator having leakage distance 290 mm was used in this study. Two type of contaminants, playwood dust and cement dust, have been studied the effect of contamination on the insulator surface. The objective of this work is to comparison the effect of contamination on potential and electric field distributions along the insulator surface when water droplets exist on the insulator surface. Finite element method (FEM) is adopted for this work. The simulation results show that contaminations have no effect on potential distribution along the insulator surface while electric field distributions are obviously depended on contamination conditions.

Keywords: electric field distribution, potential distribution, silicone rubber polymer insulator, finite element method

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1061511

References:

[1] B. Marungsri, "Fundamental Investigation on Salt Fog Ageing Test of Silicone Rubber Housing Materials for Outdoor Polymer Insulators", Doctoral Thesis, Chubu University, Kasugai, Aichi, Japan, 2006.
[2] CIGRE TF33.04.07, "Natural and Artificial Ageing and Pollution Testing of Polymer Insulators", CIGRE Pub. 142, June 1999.
[3] G. G. Karady, H. M. Schneider and F. A. M. Rizk, "Review of CIGRE and IEEE Research into Pollution Performance of Non Ceramic Insulators: Field Ageing Effects and Laboratory Test Techniques", CIGRE 1994 Session Paper No. 33 - 103, August/September 1994.
[4] I. Gutman, R. Harting, R. Matsuoka and K. Kondo, "Experience with IEC 1109 1000h Salt Fog Ageing Test for Composite Insulators", IEEE Electrical Insulation Magazine, Vol. 13, No. 3, May/June 1997,pp. 36 - 39.
[5] T. Zhao and R. A. Bernstorf, "Ageing Tests of Polymeric Housing Materials for Non - ceramic Insulators", IEEE Electrical Insulation Magazine, Vol. 14, No. 2, March/April 1998, pp. 26 - 33.
[6] R. S. Gorur, E. A. Cherney and R. Hackam, "A Comparative Study of Polymer Insulating Materials under Salt Fog Test", IEEE Trans. on Electrical Insulation, Vol. EI - 21, No. 2, April 1986, pp. 175 - 182.
[7] M. C. Arklove and J. C. G. Wheeler, "Salt - Fog Testing of Composite Insulators", 7th Int. Conf. on Dielctric Material, Measurements and Applications, Conf. Pub. No. 430, September 1996, pp. 296 - 302.
[8] S. H. Kim, R. Hackam, "Influence of Multiple Insulator Rods on Potential and Electric Field Distributions at Their Surface" , Int. Conf. on Electrical Insulation and Dielectric Phenomena 1994, October 1994,pp. 663 - 668.
[9] B. Marungsri, H. Shinokubo, R. Matsuoka and S. Kumagai, "Effect of Specimen Configuration on Deterioration of Silicone Rubber for Polymer Insulators in Salt Fog Ageing Test", IEEE Trans. on DEI, Vol. 13, No. 1 , February 2006, pp. 129 - 138.
[10] S. Sangkhasaad, "High Voltage Engineering", 3nd edition, Printed in Bangkok, Thailand, March 2006 (in Thai).
[11] C. N. Kim, J. B. Jang, X. Y. Huang, P. K. Jiang and H. Kim, "Finite element analysis of electric field distribution in water treed XLPE cable insulation (1): The influence of geometrical configuration of water electrode for accelerated water treeing test", J. of Polymer Testing, Vol. 26, 2007, pp. 482 - 488.
[12] P. Pao - la -or, "A New Design of Low Vibration Induction Motor using Finite Element Method", Doctoral Thesis, Suranaree University of Technology, Nakhon Ratchasima, Thailand, 2006.