Breakdown voltage characteristics of RBD Palm Olein and Envirotemp FR3 mixture under quasi-uniform electric field

This paper reported the experimental result of breakdown voltage characteristics of Refined, Bleach and Deodorized Palm Olein (RBDPOlein) with 10-50% of Envirotemp FR3 oil (FR3) mixture. The experiment was conducted at the temperature of room temperature (26°C-27°C), 40°C, 50°C, and 60°C under quasi-uniform electric field of AC applied voltage. Experimental result revealed the increases trend of breakdown voltage with the increasing of FR3 ratio. All the breakdown voltage of RBDPOlein and FR3 mixture is fulfill the IEC 60156 standard which is greater than 30kV. The result of chemical compositions of the oil mixture was also investigated. The fatty acid composition of the oil mixture shows the decrement of palmitic acid, and oleic acid with significant increment of linoleic acid and linolenic acid. The chemical composition test also reveals the presents of antioxidant additive, BHT in FR3, which might be give an effect to the increment of insulation strength.