1. Impact of Low Molecular Weight Acids on Oil Impregnated Paper Insulation Degradation
- Author
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Kouba Marie Lucia Yapi, K. Diby, Issouf Fofana, Yazid Hadjadj, Kakou Kouassi, and Ladji Cisse
- Subjects
carboxylic acids ,degree of polymerization ,Control and Optimization ,formic acid ,Formic acid ,020209 energy ,power transformer ,Energy Engineering and Power Technology ,levulinic acid ,02 engineering and technology ,Degree of polymerization ,lcsh:Technology ,chemistry.chemical_compound ,Acetic acid ,Insulation system ,0202 electrical engineering, electronic engineering, information engineering ,Levulinic acid ,Electrical and Electronic Engineering ,Engineering (miscellaneous) ,lcsh:T ,Renewable Energy, Sustainability and the Environment ,acetic acid ,chemistry ,Chemical engineering ,Degradation (geology) ,oil-paper insulation ,Energy (miscellaneous) - Abstract
Aging of a power transformer&rsquo, s insulation system produces carboxylic acids. These acids&mdash, acetic, formic and levulinic&mdash, are absorbed by the paper insulating material, thus accelerating the degradation of the whole insulation system. In this contribution, the effect of these acids on the aging of oil-impregnated paper insulation used in power transformer is reported. A laboratory aging experiment considering different concentrations of these three acids was performed to assess their effect on the insulation system&rsquo, s degradation. Each acid was individually mixed with virgin oil, and a mixture of acids was also blended with oil. The paper&rsquo, s degradation was assessed by the degree of polymerization (DPv). It was found that the DPv of paper aged with formic acid decreased much faster in comparison to the other acids.
- Published
- 2018
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