Impact of various stresses on the streaming electrification of transformer oil |
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| Institution: | 1. Laboratory of Technology and Applied Sciences, University of Douala, Douala, Cameroon;2. Laboratory of Fundamental Physics UFD MIP, University of Douala, Douala, Cameroon |
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| Abstract: | In this contribution the influence of various stresses and their combined impact on the electrostatic charging tendency of oil is studied. Various physicochemical properties were measured according to ASTM Standards to detect changes in oil quality. A free radical reagent, 2.2 diphenyl-1-picrylhydrazyl (DPPH), was added to oil before and after the application of stresses to determine free radical concentration. The results obtained show that the application of stresses contributes to an increase in the electrification current. These results also demonstrate that electrification current is affected by the quantity of the free radicals. |
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| Keywords: | Power transformers Mineral oil Cellulose paper Electrostatic Charging Tendency Dissolved Decay Products Turbidity Moisture content Electrical discharge Thermal stress Spinning disk system Free radicals |
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