Electricity is generated in substation,but transmission is done in different manner.
Electricity is generated at 11kVA,it is step-up to 220KVA with help of transformer.
Primary transmission line transmit power to transmission substation,here power is step-down to 22KVA.
Secondary transmission line transmit the power to secondary transmission substation,here power is step-down to 11KVA.
Now,power is transmit to distribution substation (220V/440V).
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