A dry type transformer is defined as a transformer that does not use any liquid as an insulating or cooling medium for its windings or core. Instead, the windings and core are enclosed in a sealed tank that is filled with air or gas under pressure.Dry type transformers are widely used in various industries and applications because of their safety, reliability,and environmental benefits. They can operate in harsh conditions such as high humidity, fire risk, and seismic events without compromising their performance or posing any hazard to people or property.This type of transformer cools down itself using ventilation and air to normalize heat naturally. This makes it a “dry” transformer as no oils are used for any of its operational methods. They are safe for people and property because they do not contain any flammable or toxic liquid that can leak or catch fire. They are maintenance-free and pollution-free because they do not require any oil changes,oil tests, oil spills cleanup, or special disposal methods.