Transformer Oil

• Liquid insulation in power transformers
• Dissipates heat of the transformer i.e acts as a coolant
• Preserve core & winding
• Prevents direct contact of atmospheric oxygen with cellulose made paper insulation of windings, which is susceptible to oxidation

• Optimum Insulation: High BDV, high interfacial surface tension and the absence of polar impurities ensure optimum insulation and protection of the transformers
• Higher flash point, resulting on low evaporation losses and better safety
• Low Viscosity ensures good fluidity and heat transfer capabilities to maintain appropriate temperatures
• Higher Resistivity : High Insulation resistance between transformer windings prevent damage & reduce downtime
• Highly Refined Oil with advanced base oil technology, Ensures Oxidation stability & Longer life of oil
• Non Corrosive: Highly refined with low sulfur content, hence non corrosive in service, free from DBDS and PCB

• Based upon the present international standards and specific requirements, we offer transformer oils on following major categories
• Uninhibited Transformer oil – Recommended for standard equipment, operates at normal conditions
• Inhibited Transformer oils – Recommended for operations at higher temperature & where higher oxidation resistance is required
• Trace inhibited transformer oils
• Specialty High Grade Transformer oils

• Bucket, Barrel

• It is due to several inherent strengths that Lubricants has the largest Industrial Oil market . Trusted by all our customers for Consistent quality, Timely Delivery and a robust Technical Services backup,Lubricants continues its growth in this segment by offering newer and advanced products as required by the market. 
• Find usages in all applications such as hydraulic systems, enclosed gear boxes, compressors, pumps, pneumatic tools, general purpose machinery applications etc.

All types of heat transfer applications. This grades finds extensive application in textile, pharmaceuticals, chemical and processing industries.

HPCL markets thermic fluids under the brand names of HYTHERM. These grades are developed to provide performance in broad range of application in textile, chemical, paint & varnish and petrochemical industries. These grades are formulated from specially derived petroleum base stocks having exceptional resistance to degradation during high temperature use. With thousands of satisfied customers over the years and millions of liters of Thermic fluid sold and repeat orders being executed HYTHRM grades command market leadership in thermic fluids segments.

HYTHERM is undoubtedly the first choice for all customers. HPCL has its own lube base oils which ensures consistency in quality of Lube base oils leading to uniformity of the finished oil parameters.

The product is manufactured from petroleum stocks produced by special refining process in which the thermally unstable components are removed. HYTHERM 500 is recommended in service involving a maximum bulk oil temperature of 290°C. In addition, it has the following benefits.

• Excellent oxidation & chemical stability
• Good heat transfer properties
• Low volatility
• Non-corrosive and non-toxic

This grade is derived from the finest quality petroleum base stocks and is fortified with high performance additives to enhance performance at higher temperatures. It has the following outstanding features.

• Ability to provide superior performance in indirect closed fluid heat transfer system up to bulk operating temperature up to 320°C
• Increased life, reduced oxidation and thermal degradation
• Minimal fouling and deposit formation on heat transfer surface. Hence sustained heat transfer characteristics

• Excellent oxidation & chemical stability
• Low volatility, low vapor pressure
• Non corrosive & non toxic
• Excellent thermal conductivity