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ECONOMICS OF POWER GENERATION

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
In a 3 phase system, the line losses are W at a p. f. Of 1 . If the power factor becomes 0.8 lagging, the losses will becomes

2 W
0.8 W
1.57 W
1.25 W

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

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

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Economics of Power Generation
The main reason for low power factor of supply statem is due to the use of

All correct
Resistive load
Induction morors
Synchronous motors

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Economics of Power Generation
An over excites synchronous motor on no load is called

Alternator
Universal motor
Synchronous condenser
Induction motor

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