Distribution of Electricity

In distribution substation,power is step-down(with transformer) to 220/440 KVA for single phase/three phase respectively.
From distribution substation,power is supplied to feeders. From feeders,power is supplied to distributers.
Distributer's distribute the power supply to consumer's.
No. of units consumed by the consumer is termed as KWH (Kilo-Watt per Hour).
There are loses in transmission of electricity which can be removed with lamination.