Transformers can even be categorized consistent with the method of cooling used. The various methods consistent with these classifications are:
Oil stuffed Self-Cooled method
Oil stuffed self-cooled kind uses little and medium-sized distribution transformers. The pull together windings and core of such transformers are mounted during a welded, oil-tight steel tank given a steel cowl. The tank is crammed with pure, top quality insulating oil as before long because the core is change at its correct place. The oil aids in transferring the warmth from the core and also the windings to the case from wherever it's radiated bent the environment. For smaller sized transformers the tanks are sometimes sleek surfaced, except for bigger size transformers a bigger heat radiation space is required, which too while not distressful the cubic capability of the tank. This is often realized by repeatedly corrugating the cases. Quiet greater sizes are given radiation or pipes.
Oil stuffed Water Cooled method
This type is employed for rather more cost-effective construction of huge transformers, because the on top of told self-cooled methodology is extremely valuable. Constant methodology is employed here as well- the windings and also the core are immersed within the oil. The sole distinction is that a cooling coil is mounted close to the surface of the oil, through that cold water keeps flowing. This water carries the warmth from the device. This design is typically enforced on transformers that are employed in high voltage transmission lines. The most important advantage of such a style is that such transformers don't need housing aside from their own. This reduces the prices by an enormous quantity. Another advantage is that the upkeep and review of this kind is barely required once or doubly during a year.
Air Blast method
This type is employed for transformers that usage voltage less than 25,000 volts. The transformer is contained during a skinny sheet box open at each ends through that air is blown from all-time low to the highest.