Physico-chemical properties of power transformer oil mixtures

This work is devoted to the study of the physico-chemical properties (aspect, colour, density, water content, acidity, discharge voltage, dissipation factor, viscosity and flash point) of mixtures between a used transformer mineral oil and a new one other of the same nature, and compatibles between them for all ratios. It is oriented towards the research of optimal ratios enabling to have acceptable properties of the mixture.