The effect of insulation oil on the electrical and dielectric properties of epoxy resin

Abstract

It is well known that thermal and electrical stresses have a strong influence on the degradation of insulation, but the effect of insulation oil is not yet well analysed. There are different electrical apparatus operating with insulation oil as cooling system and epoxy resin as the insulation system. So it is very important to be cleared, how the oil will affect the electrical and dielectric properties of the solid insulation material.