Electrical and Thermal investigation of Transformer Oil base Nanofluids

Transformer oil is one of the most important materials which are used in electrical and transformer industrial. The main function is protection and insulation of transformer core components, as well as heat transfer from its core to environment. Improving the performance of this material has been one of the researchers' concerns. The effect of different nanoparticle on the electrical breakdown voltage and heat transfer of this oil is investigated in this research. The nanofluids have made by various six nanoparticles suspended in base transformer oil. New suspension is tested under the ultrasonic condition. Thermal investigation also carried out by KD2 instrument. Electrical mode analyzed by Breakdown voltage meter. The experiments carried out in tow temperature 25oC and 55oC. Results show that, using Nano particles in transformer oil causes improve heat transfer and decrease Electrical breakdown Voltage, respectively. Diamond nanofluid showed the best result as 83% enhancement in thermal conductivity