Sinopec Naphthenic Transformer Oil

Sinopec Insulated Transformer Oil is a series of products blended using 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. There are four grades, I-0℃, I-10℃, I-30℃, and I-40℃, which are selected based on their low-temperature performance. None of the grades contain harmful polychlorinated biphenyls (PCBs).

Applications:

Sinopec Insulated Transformer Oil is suitable for use in:

• Oil-filled transformers, operating at 330 kV or less, where it acts as a non-conducting insulating and cooling medium.
• Oil-immersed switch-gear.
• 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.

Typical Properties and Specifications: