Q7.25 (a) 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. Estimate the line power loss in the form of heat.
Power required
The total resistance of the two-wire line
Input Voltage
Output Voltage:
RMS Current in the wireline
Now,
Power loss in the line
Hence, power loss in line is 600kW.