KI25X ultra-high voltage transformer oil is a naphthenic crude oil as raw material, using a special process to produce the base oil, adding high quality antioxidant compound additives It has the characteristics of rapid heat transfer, good oxidation stability, excellent electrical performance and good gas extraction resistance. The product is produced under strict quality control procedures with stable performance Reliable, fixed resources. KI25X and KI45X transformer oils meet the requirements of IEC60296 (82) IIA, BS148 (98) IIA and ASTM D3487 (93) II standards.