Effect of micro-filler of aluminium oxide on the mechanical, electrical and thermal properties of electrical insulation systems

Polymers are the preferred materials for use in electrical applications and for power electronics due to their simple of production, light weight and low cost. However, polymers have relatively low thermal conductivity. This paper deals with preparation of epoxy composites with content of micro-filler of aluminum oxide (Al
₂
O
₃
) with high thermal conductivity. Using specific fillers can improve performance parameters of electrical equipment and their thermal, electrical, mechanical properties without the design changes. When it found electrical insulating systems with higher value of thermal conductivity thus it would be possible to increase utilization of rotating machine, alternatively encumber of rotating machine of higher values of current, reduce the size and change the price of electric rotating machines.