Answer / roy

Oil is used to cool the transformer, much like a radiator in a car.

Answer / vinod

there r 2 types use in cooling purpose...
oil cooling & air cooling...
oil filled means there is a tank with filled oil 2 cool the
transformer....

Answer / ramendra shukla

Oil filled Transformer- Oil is a medium of insulation as
well as heat rediation for oil filled X-mer.
Commonly there are four types of cooling has been prefere
for Transformers like- Oil ,Air,water & Collant as medium.
As we know that X-mer is a device which can change the
voltage (Up & Down) without changing its frequency.
As per application they are classified as-
a)Power X-Mers
b)Distribution X-Mers
The X-mer are used for more than 33 KV are know as Power X-
Mer normally used at generating stations & substations
Distribution x-mer- Below 33KV normally used for Domestic,
&commercial &Industrial application at consumer end.

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