The potensial of rice bran oil as an alternative transformer oil in the future by adding TiO2 and SiO2 as filler and determining the insulation performance of the oil through testing the dielectric dissipation factor (DDF) or tan δ was reported. Sample tested on rice bran oil with TiO2 and SiO2 filler with concentration of 0,02 wt% but with different temperature variations of 25°C, 40°C, and…