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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?
Answers (1)
Power required
The total resistance of the two-wire line
Input voltage
Output voltage:
RMS current in the wireline
Now,
Total power delivered by plant = line power loss + required electric power = 800 + 600 = 1400kW.
View full answer
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