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Experimental modeling of the flashover of polluted insulator in the presence of a metal plate using RSM technique

Bouhmama M., Flazi S., Nemmich S., Tilmatine A.

Journal of Power Technologies

2017

Vol. 97, nr 4

342--346

Flashover of polluted insulators has been the subject of many experimental and numerical research papers. Several mathematical models of flashover voltage have been proposed in terms of current, discharge length, electrolyte length and resistivity. However, there is no model as yet based on the geometric factors of the electrolyte channel-such as width and depth-and the interaction between them. Furthermore, as very few research papers have been published about discharge elongation in the presence of a metal object between the electrodes, the aim of the present work is to model flashover voltage in the presence of a metal plate, dipped in electrolyte or placed on its surface. Two mathematical models were obtained using response surface modeling and they were used in the analysis of the effect of geometric factors on the flashover discharge.