1.

Read the following passage and then answer questionson the basis of your understanding of the passage and the related studied concepts. A small township with a demand of 880 kW of electric power at 220 V is situated 20 km away from a mini hydropower generating station generating power at 440 V. The resistance of the two wire line carrying power is 0.5 ohm per km. The town gets power from the line through a 11 kV-220 V step down transformer at a substation at the township. How much power must the hydropower plant supply to the township to fulfill its entire power demand ? Assume that there is no power loss due to leakage during transit.

Answer»

880 kW
1008 kW
1136 kW
1200 kW

Solution :(ii) 1008 kW
[Hint: Total power to be SUPPLIED by hydropower plant = 880 kW + 128 kW = 1008 kW]


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