Effects of high thermal conductivity on temperature rise of epoxy cast winding for power transformer

Epoxy resin is widely used for insulation in cast dry-type transformers, in spite of its weak ability of thermal conduction. One approach to obtain a higher thermal conductivity is to introduce inorganic fillers with high thermal conductivity. The purpose of this paper is to study the effect of high thermal conductivity on temperature rise of epoxy cast windings. In this paper, micro and nano boro...