The winding are designed to optimize dynamic, thermal, mechanical, and electrical stress, depending upon the current and voltage requirements. The LV windings are made by high conductivity electrolytic foil copper and flat copper with high quality insulation paper. This technology enhances the mechanical strength of the windings to withstand short circuit forces. The foil windings have a great advantage because axial short circuit forces. The HV windings are made by high quality of round or rectangular insulated copper conductors.