Answer / gajendra

TRANSFORMER OIL

Answer / raj

a natural mineral oil is used as coolants.

now a days ASKARELS or PYROCLOR is widely used , since non
inflammable. high stability on di-electric . thermal
observation and so many advantages...

Answer / sujol

For trnafomer cooling mostly Crude oil is used.

Answer / gaurav

It is cooling fans and radiators, as such insulating oil is
not a coolant.However the insulating oil is the medium, by
circulating it we can supress the heat

Answer / juhi

it is the transformer oil which is used for cooling purpose in transformer and also whereever required fans are also put for cooling purpose.

Answer / murugan

Large transformers for indoor use must either be of the dry type, that is, containing no liquid, or use a less-flammable liquid.
Well into the 1970s, polychlorinated biphenyls (PCB)s were often used as a dielectric fluid since they are not flammable. They are toxic, and under incomplete combustion, can form highly toxic products such as furan. Starting in the early 1970s, concerns about the toxicity of PCBs have led to their banning in many countries.
Today, non-toxic, stable silicon-based or fluorinated hydrocarbons are used, where the added expense of a fire-resistant liquid offsets additional building cost for a transformer vault. Combustion-resistant vegetable oil-based dielectric coolants and synthetic pentaerythritol tetra fatty acid (C7, C8) esters are also becoming increasingly common as alternatives to naphthenic mineral oil. Esters are non-toxic to aquatic life, readily biodegradable, and have a lower volatility and a higher flash points than mineral oil.

Answer / ponnu(the elite)

oil,water,air.most of all we r using oil

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