Open AccessPrediction of pollution flashover voltages of ceramic string insulators under uniform and non-uniform pollution conditions
Author(s) -
Chandrashekhar Badachi,
Pradipkumar Dixit
Publication year - 2016
Publication title -
journal of electrical systems and information technology
Language(s) - English
Resource type - Journals
ISSN - 2314-7172
DOI - 10.1016/j.jesit.2016.01.003
Subject(s) - insulator (electricity) , arc flash , string (physics) , ceramic , voltage , pollution , contamination , materials science , engineering , composite material , electrical engineering , physics , theoretical physics , ecology , biology
Present paper emphasizes on the development of a new mathematical model to estimate the contamination flashover voltages of ceramic string insulators under varying uniform and non-uniform pollution conditions subjected to AC voltages. The proposed model is developed based on dimensional analysis of the factors which commonly influence the process of contamination flashover of insulators. The new model for string insulators has been validated using previous authors both experimental and analytical results for total of fifteen string insulators including porcelain, glass string insulators and one porcelain log rod insulator. The validation of the new model indicated that results of proposed model for string insulators are in good agreement with published experimental and model results