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Economics of Power Generation

Economics of Power Generation
The power transformer is usually rated in

kWh
kVAR
kW
kVA

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Economics of Power Generation
When the power factor is improved, the lagging kVAR drawn from the supply will

Increase
Remains same
Decreases
None of the listed here

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Economics of Power Generation
In a 3 phase system, the line losses are

Inversely proportional to cos²Ф
None of the listed here
Invesely proportional tocos Ф
Directly proportional to cos Ф

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Economics of Power Generation
A load draws a power of 10 kW at a power factor of 0.707 lagging. The lagging kVAR drawn from the supply will be

10 kVAR
15kVAR
20 kVAR
5 kVAR

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Economics of Power Generation
The area under a load curve gives

average demand
energy consumed
maximum demand
None of these

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Economics of Power Generation
When the plant restors to load shedding it can be conclucted that

Diversity factor is zero
Daily load factor is unity
Plant is under repairs
Peak demand is more than the installed capacity

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