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Economics of Power Generation

Economics of Power Generation
A synchronous condenser improve p. f. by taking

Leading kVAR
Both leading and lagging kVAR
Lagging kVAR
None of the listed here

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Economics of Power Generation
________ is invariably used for peak load

Nuclear power plant
Pumped storage plant
None of these
Steam turbine plant

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Economics of Power Generation
An ideal value of power factor is

0.75
0.5
0.8
1

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

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

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Economics of Power Generation
Generating capacity connected to the bus bars and ready to take load when switched on is known as

hot reserve
firm power
spinning reserve
cold reserve

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Economics of Power Generation
When the power factor is increased

Active power decreases
Active power increases
Line current increases
Line current decreases

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