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Economics of Power Generation

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

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

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Economics of Power Generation
For a consumer most economical power factor is generally

0.95 lagging
0.5 lagging
0.95 leading
0.5 leading

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Economics of Power Generation
Which plant can never have 100 percent load factor?

Hydroelectric plant
Peak load plant
Nuclear power plant
Base load plant

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

None of the listed here
Increase
Remains same
Decrease

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Economics of Power Generation
A load drwas active power(P), apparent power(S) and reactive power (Q) from the line. The power factor of the load is

P/S
P/Q
S/P
Q/P

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Economics of Power Generation
When the power factor is unity, the relation between line currnet I and supply voltage V is

I is in phase with V
I leads V by 90°
I lags V by 90°
None of the listed here

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