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The power transformer's lifetime is strongly influenced by its insulation system degradation, especially by the paper degradation. As the vegetable oil should replace mineral oil, this paper presents a study concerning the dielectric properties variation of cellulosic paper impregnated with vegetable oil as a function of the ageing duration. In order to characterize the condition of the paper the...
The operational safety of transmission and distribution grids depends essentially on the power transformers' state. Lately, there is a tendency to replace mineral oils with vegetable oils because vegetable oils provide a higher explosion safety aspect for transformers due to their higher fire points. Further, vegetable oils are favorable for the environment due to their higher biodegradability. The...
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