Determination of moisture diffusion coefficient for oil-impregnated Kraft-paper insulation
A new methodology to determinate the diffusion coefficient in solid materials. Expressions of the diffusion coefficient of impregnated Kraft paper are proposed. The dependence of the moisture diffusion coefficient on paper aging was considered. Dependence of the moisture diffusion coefficient on insulation thickness was found. The proposed expressions of the moisture diffusion coefficient were validated.
moisture diffusion coefficient power transformers cellulose insulation