Di-Electric oil to cool the windings inside the transformer, There is a primary winding(high voltage) and a secondary winding(Lower Voltage), Usually stepping down the voltage to about 170 Volts for residential houses, It about 120 Volt by the time it gets to your panel.
a hole transformer
Transformer has windings
yes we can place auto transformer in place of original transformer
A transformer that increases voltage is a step-up transformer.
The function of fans in a transformer is to regulate the transformer's temperature.
Center tap transformer is the such kind of transformer that is made to a point half way along a winding of a transformer.
An isolation transformer is usually a ferromagnetic transformer. The question needs to be framed more usefully.
because the copper is saved in the auto transformer that is the ratio of weights of copper in auto transformer to normal transformer is (1-(1/a)) where a is transformer ratio
A transformer does many things.
The difference between current transformer and potential transformer is that the secondary of a current transformer can not be open circuited while under service whereas that of the potential transformer an be open circuited without any damage to the transformer.
there is nothing like a balanced and unbalanced transformer.
This type of a transformer is known as a step up transformer.