Explain the use of transformer for distribution of power over long distances.

Explanation

Transformer can be used for the large scale transmission and distribution of electric energy over long distances.
The voltage output of the generator is stepped up so that current is reduced and the `I^(2) R` loss is cut down.
It is then transmitted over long distances to an area sub-station near the consumers.
There the voltage is stepped down. It is further stepped down at distributing sub-station and utility poles beofre a power supply of 240V reaches our homes.