Everything That You Should Know About A Liquid Filled Transformer

By Author: Carol England
Total Articles: 82
Comment this article

As you might probably know, a transformer that is under load would end up generating heat as a result of winding, and thus, core losses could occur during the transformer’s operation. Remember that there is a certain acceptable temperature for transformers that has to be maintained in order for it to function well when it comes to power applications. The use of voltage regulators is important so as to maintain an acceptable temperature within the transformer and such temperature is often also in relation to the limitations of the materials used in manufacturing the transformers. In order to avoid problems during a sudden increase of temperature, a type of cooling is being used. The two types of cooling are the liquid-filled transformer and the dry type or oil-filled transformer. So read on to find out more about them.

Fluid Liquid-Filled Transformers

Vegetable oils as well as animal fats are often used for the liquid filled type of cooling. The reason for this is simple – these varieties of oil are less harmful to the environment as compared with the petroleum oils. But then the vegetable oils are not ...
... actually used on transformers for very long. In the recent years companies that manufacture transformers have since worked hard on creating transformer designs that would make use of the vegetable oils for the liquid-filled transformer. Transformers that make use of this oil are filled with less flammable dielectric fluids like the vegetable oil and animal fats. Another advantage of using these biodegradable fluids is to lessen the risk of flammability concerns. Another long term advantage is the fluid’s biodegradability which is proven to be able to demonstrate high environmental assimilation in less than a month and is said to be coming from a resource that is toxin-free.

Typical Applications

The most common application of liquid-filled transformer is to keep wind turbines to be in full functional. Another is to keep both indoor and outdoor areas of heightened environment to stay safe. On the other hand, the dry filled transformers are often used as mineral based oil for insulation systems. This is said to result to an outstanding dielectric and thermal properties and at a relatively low cost. These units are very popular and are truly effective and that all other types of transformers are in fact judged in relation to them. These transformers are unparalleled when it comes to the cost, as compared with other options. But the weakness of oil filled transformer lies mainly on the flammability. This is why oil filled transformers are often restricted only to outdoor installations and in some instances, use for indoor installations as well, provided that there are voltage regulators which would regulate the transformer’s output in order to protect the premises from fire.

The oil filled transformers are known to be cheaper, thus, you can find this in almost every sort of power distribution. But due to the awareness of fire risks that are in association with the use of oil filled transformers, a lot of companies have resulted to using liquid-filled transformer as cooler.

For more information on Voltage Regulators, you can click here