Transformer Oil Supplier
Transformer Oil Supplier

Transformer Oil Supplier

Insulation and cooling are the primary functions of transformer oil. Dielectric strength must be high, thermal conductivity must be high, and chemical stability must be high.

 Typical specifications are: flash point 140° C or greater, pour point 40° C or lower, dielectric breakdown voltage 28 kV (RMS) or greater.

It is possible to circulate convection cooling oil through external radiators on a large tank filled with oil. Power transformers with capacities of thousands of kVA may additionally have cooling fans, oil pumps, and even oil-to-water heat exchangers. Power transformers are dried using either electrical self-heating or vacuum treatment to ensure that the transformer is 100% dry before adding insulating oil.

The result is the prevention of corona formation and subsequent breakdown of the electrical system. Transformers with an oil reservoir may have a Buchholz relay on the gas detector (oil reservoir).

These safety devices detect gas accumulation in transformers due to an electrical arc, corona discharge, or overheating. These devices can trip an automatic circuit breaker when gas is accumulating or a rapid pressure rise occurs. With no conservator, the transformer typically includes sudden pressure relays that serve a similar purpose to the Buchholz relay.

When a transformer is in use, the oil is under electrical and mechanical stress. Also present in high temperatures are contaminations caused by chemical interactions between insulation and windings. Over time, the chemical properties of transformer oil change, taking away its effectiveness for the intended purpose. Transformer oil is used in electrical apparatus of various sizes.

To ensure its suitability for further use, it is constantly tested for electrical and chemical characteristics. Some oils are treated and filtered in order to improve their condition. There are four types of tests:

Tests can be conducted using any of the methods identified in standards published by IEC, ASTM, IS, and BS. Tests like Furan and DGA aren’t meant for test oil quality. They are intended to determine any anomalies in the transformer’s windings or paper insulation that would not otherwise be detectable without a comprehensive overhaul. Recommended intervals for these tests are:

Transformer Oil Supplier: Ensuring Efficient Power Distribution

As a leading transformer oil supplier, we at The Pride provide high-quality transformer oil and Spindle Oil Supplier to ensure efficient power distribution. Our transformer oil is widely used in various industries and is known for its excellent dielectric properties, low viscosity, and excellent heat transfer capabilities.

Our Transformer Oil Product

Our transformer oil is designed to meet the specific needs of modern transformers. Our product is free from harmful impurities, and we ensure that our oil meets all relevant international standards. Our transformer oil is suitable for use in both power and distribution transformers, and it is compatible with both mineral oil and synthetic oil-based transformers.

Benefits of Transformer Oil

Transformer oil plays a critical role in the efficient functioning of transformers. Some of the benefits of transformer oil include:


Transformer oil is an oil-based liquid that is used as a dielectric fluid and coolant in transformers. It has excellent dielectric properties, low viscosity, and excellent heat transfer capabilities.


Transformer oil has excellent dielectric properties, is an excellent heat transfer medium, has high oxidation stability, and helps to control the contamination of the transformer’s insulating materials.


Transformer oil is necessary to insulate the transformer’s windings and core, dissipate the heat generated in the transformer’s core, and prolong the transformer’s service life.

The two main types of transformer oil are mineral oil and synthetic oil-based transformer oil.

Enquiry Now

At The Pride, we are committed to providing high-quality transformer oil to ensure efficient power distribution. Our transformer oil is designed to meet the specific needs of modern transformers and is free from harmful impurities.

If you are looking for a reliable transformer oil supplier, look no further than The Pride. Contact us today to learn more about our Lubricant Oil Manufacturers in Coimbatore.


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