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Economics of Power Generation

Economics of Power Generation
Load shedding is done to

Run the equipment efficiency
Reduce peak demand
Improve power factor
Repair the machine

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Economics of Power Generation
The drawback of diminishing value method for calculating depreciation is that depreciation charges

None of the listed here
Are independent of rate of interest
Are small in early years
Are high in later years

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Economics of Power Generation
The lagging reactive power drawn by a load is zero. The power factor of the load is

None of the listed here
0.75
0.5
1

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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

1.57 W
2 W
0.8 W
1.25 W

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Economics of Power Generation
Load curve helps in deciding

operating schedule of generating units
total installed capacity of the plant
all of the listed here
sizes of the generating units

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Economics of Power Generation
When the power factor is increased

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

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