Panama Petrochem Ltd.

Know Everything About Transformer Oil

Posted by Admin on February, 08, 2021

The transformer oil is designed mainly for insulating rather than lubricating. Transformer oils are used in various applications but not like the remaining oils. If you are unsure of what transformer oil is and how does it work, then you have come to the right place.


Where is Transformer Oil Used?

Like some kinds of oil, for instance, motor oil, the purpose of transformer oil can find in the name itself. The transformer oil manufacturers in Gujarat design this oil to power the transformers. A crucial role is played by the transformer oil in the energy grid. No wonder, why it is also termed as an insulating oil.


Transformer Oils: What Do They Do?

Unlike other types of oil, the transformer oil isn’t manufactured to minimize friction. However, it is manufactured to help bring down the temperature. The motor oil does the exact thing to some extent. That said, transformer oils are manufactured for a primary task- for transformer insulation. This is the reason, why the transformer oil greatly differs from other lubricant types when we talk of properties.


For the oil being eligible to be used inside a transformer, the oil should:

• Consist of improved dielectric strength.

• Consist of great thermal conductivity

• Consist of good chemical stability

• Should have the power to maintain every characteristic at an extremely high temperature and for a longer duration.


The transformer oil is also utilized to retain the core and windings within a transformer. Without transformer oil, the transformers can overheat really quick and encounter damage resulting from factors such as arching, corona discharge, and lots more.


Transformer Oil: The Available Types

The majority of the transformer oils are based on mineral oil. The two most standard options present in the market are:

• Naphtha-based transformer oil

• Paraffin-based transformer oil

Of these two transformer oils, the one that oxidizes easily are the naphtha oils. However, the sludge generated during the oxidation is 2x more soluble than what paraffin-based transformer oil produces. This implies that the sludge doesn’t collect at the base of the transformer where it would hinder convection circulation with the oil.


On the other hand, the paraffin-based transformer oil doesn’t dole out the same perks and the sludge can easily collect at the base of the transformer. The paraffin-based transformer also comprises a high pour point, which can be a problem in cold climates.


Other Applications of Transformer Oil

Transformer oils are used primarily in the domain of power generation; However, the oil also has usage in other scenarios. The oil can be used in any given scenario where insulation is a must, within electrical equipment, and is suitable for high-voltage applications. For instance, switches of high voltage and capacitors, and few other circuit breaker types can avail benefits from the insulating and cooling properties of the oil.


Being a safety precaution, regular testing is mandatory for transformer oils. You must also conduct an on-site inspection twice/year and consider testing the samples for dissolved gasses. Hopefully, you understood everything that you wanted to know about transformer oils.



This entry was posted on February, 08, 2021 at 10 : 01 am and is filed under Mineral Oil. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response from your own site.

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