Analytical estimation of flashover voltage based on simplified formulation of the resistance of the pollution layer



Abstract. High voltage insulators are supposed to provide a continuous and safety insulation in energy transmission systems. However, pollution layer that occurs on the surface of insulator decreases the performance of insulators and causes surface flashovers and therefore short circuit failures. Numerous works have been developed to calculate the flashover characteristics of polluted insulators, these works were carried out on models with simple geometry. These models are advantageous for both experimental measurements and theoretical modelling. However, these models negligent the effects of the complex insulator geometry. In this paper, an analytical method based on the open model knows as AR model is proposed to calculate the flashover voltage of polluted insulator. The proposed method takes into account the new simplified formulation of the resistance of the pollution layer. The validity of the method was verified by comparing the computed results with the experimental results of previous researchers and good correlation has been shown.

High Voltage Insulator, Flashover Voltage, Resistance of the Pollution Payer, Open Model

Published online 12/10/2016, 7 pages
Copyright © 2016 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: S.A. BESSEDIK, H. HADI, R. DJEKIDEL, ‘Analytical estimation of flashover voltage based on simplified formulation of the resistance of the pollution layer’, Materials Research Proceedings, Vol. 1, pp 53-59, 2016

The article was published as article 14 of the book Dielectric Materials and Applications

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