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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
1.25 W
2 W
0.8 W
1.57 W
1.25 W
2 W
0.8 W
1.57 W
Answer
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Related Question
Economics of Power Generation
If C is the capacitance per phase for delta connected capacitor bank, then capacitance per phase for star connected the capacitor bank is
C/3
3C
C/√3
√3C
C/3
3C
C/√3
√3C
Answer
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Economics of Power Generation
The most economical power factor for a consumer is generally
0.6 lagging
1
0.75 lagging
0.95 lagging
0.6 lagging
1
0.75 lagging
0.95 lagging
Answer
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Economics of Power Generation
The connected load of a domestic consumer is around
120 kW
5 kW
80 kW
40 kW
120 kW
5 kW
80 kW
40 kW
Answer
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Economics of Power Generation
When the power factor improved, the kW capacity of alternator is
Increased
None of the listed here
Unaffected
Decreased
Increased
None of the listed here
Unaffected
Decreased
Answer
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Economics of Power Generation
Large capacity generators are invariably
Hydrogen cooled
Natural air cooled
Water cooled
Forced air cooled
Hydrogen cooled
Natural air cooled
Water cooled
Forced air cooled
Answer
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