Q7.25 (b) A small town with a demand of of electric power at is situated away from an electric plant generating power at . The resistance of the two wire line carrying power is per km.The town gets power from the line through a step-down transformer at a sub-station in the town.
How much power must the plant supply, assuming there is negligible power loss due to leakage?
The total resistance of the two-wire line
RMS current in the wireline
Total power delivered by plant = line power loss + required electric power = 800 + 600 = 1400kW.