Description
SINOPEC Super Transformer Oil is blended with highly refined mineral oil and a selected antioxidant. It is designed for insulating and cooling transformers, oil-immersed switch-gear, and other electrical insulating applications. SINOPEC Super Transformer Oil doesn’t contain polychlorinated biphenyls (PCBs).
Applications:
SINOPEC Super Transformer Oil is suitable for use in:
- Oil-filled transformers, where it acts as a non-conducting insulating and cooling medium.
- Other electrical insulating applications.
Features and Benefits:
- Excellent dielectric (insulating) properties: Effectively prevent discharge in an electric field.
- Low viscosity and low density: Provide good cooling properties and heat transfer characteristics at room temperature and below, ensuring effective cooling of transformer core and coils.
- Even at very low temperatures, the oil viscosity remains low: Allowing the transformer to be started up under very cold conditions without problems.
- Excellent oxidation stability characteristics: Provided by the stable base oil together with the high-performance oxidation inhibitor system, preventing the formation of acidic material and sludge in service, extending the life of the oil.
All four grades meet the requirements of IEC 60296:2003 for transformer oils.
SINOPEC Super Transformer Oil Grade TVAI-20ºC TVAI-30ºC TVAI-40ºC Reference method Kinematic viscosity,mm2/s, ISO 3104 cSt @ 40ºC 10.07 9.447 8.465 IEC 61868 cSt @ -20ºC 213.8 – – cSt @ -30ºC – 397 – cSt @ -40ºC – – 1944 Pour point,ºC -32 -48 -54 ISO 3016 Water Content, mg/kg 16 13 15 IEC 60814 Breakdown voltage, kV 48 43 44 IEC 60156 Dielectric dissipation factor @ 90ºC, IEC 60247 0.0003 0.0006 0.0003 ISO 3675 or ISO 12185 Dielectric dissipation factor 47 50 53 Acidity, mg KOH/g 0.006 0.006 0.005 IEC 62021-1/2 Corrosive sulfur Not corrosive Not corrosive Not corrosive DIN 51353 Interfacial tension, mN/m 50 51.1 50 EN 14120 or ISO 8754 Oxidation stability, 500 h @ 120ºC, IEC 61125 Total acidity, mg KOH/g 0.04 0.06 0.03 Sludge, wt% 0.01 0.01 0.03 DDF @ 90ºC 0.011 0.012 0.0323 Flash point (PMCC), ºC 164 164 156 ISO 2719 Density @ 20ºC, kg/m3 0.833 0.8378 0.8354 IEC 60247 or IEC 61620
