Abstract

In recent days, there was a tremendous revolution in the application of nano technology in the field of electrical engineering. Nano particles were used as fillers in the polymeric insulating materials to improve the physical, chemical, electrical, mechanical and thermal properties and to avoid tracking in the polymeric insulation. One such application of the nano fillers was practically implemented in the single phase induction motor to improve the performance and the thermal withstanding capacity of the motor. Alumina and silica nano particles were used as fillers for the varnish or enamel used in the single phase induction motor. Enamel was used as coatings for the windings of the motor. The performance and thermal withstanding capacity of the single phase motor was improved by coating the windings of the motor with the enamel filled with Alumina and silica nano particles in the ratio 1:4. From this research, it was observed that the temperature of the nano coated motor was decreased by 9.5% when compared to that of normal motor during daytime. The temperature of the nano coated motor was decreased by 8.6% when compared to that of normal motor during the night time. The efficiency was improved by 19.07% during the daytime by adding nano coating to the single phase induction motor whereas the efficiency was improved by 13.08% during the night time.