Explain with the aid of a simple diagram, the transmission of electric power from the generating station to your house.

The transmission of electric power from the generating station to our house is explained in the below diagram:

The alternating voltage generated is first stepped up from 11 kV to 132 kV at the generating station (also called the grid sub station) using the step up transformer. It is then transmitted to the main sub station. At the main sub-station, the voltage is stepped down from 132 kV to 33 kV using a step-down transformer and is then transmitted to the heavy industries and intermediate sub stations. At the intermediate sub station, the voltage is again stepped down from 33 kV to 11 kV using the step-down transformer and from here it is transmitted to the light industries and city sub station. At the city sub station, it is further stepped down from 11 kV to 220 V using the step down transformer to supply it to the domestic consumers.