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Power Systems

Power Systems
The insulator thickness on the conductor, in cables depends upon

 reactive power
 power factor
 current
 voltage

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Power Systems
A synchronous generator is of 100 MVA have inertia constant of 20 MJ/MVA. Find the angular momentum in MJsec/electrical degrees

 0.22
 2000
 5
 0.4

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Power Systems
If the penalty factor of a plant is unity, its incremental transmission loss is

None of these
 0
 -1
 1

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Power Systems
A transmission line has self and mutual impedances are 0.8 and 0 pu respectively. Find the positive, negative and zero sequence impedances respectively?

 0.6, 0.6 and 1.2 pu
 0.6, 0.8 and 1.2 pu
 0.8, 0.8 and 0.8 pu
 0.6, 0.6 and 0.6 pu

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Power Systems
The essential requirement(s) for power plants to be operated as peak load plants are

 Low capital cost.
 Quick response to load variation.
 Capability of quick starts.
All of these

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Power Systems
Ferranti effect will not occur in which of the following transmission lines

 medium transmission lines
 short transmission lines
All of these
 long transmission lines

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