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Power Systems

Power Systems
Most commonly used material for insulator is

All of these
 mica
 glass
 porcelain

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Power Systems
A power station plant load factor is defined as the ratio of

 the energy generated to that of maximum energy that could have been generated
 minimum load to average load
 average load to the peak load
 minimum load to peak load

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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

 2000
 0.4
 0.22
 5

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Power Systems
If the fault is very nearer to the generator, the fault current is

 larger
 any of the above
 less
 zero

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Power Systems
Ferranti effect occurs under

 no load
 full load
 any of the above
 half load

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Power Systems
In a 4*4 Y bus matrix the number of non zero elements are 12. Find the sparsity of the system?

 0.75
 0.5
 0.25
 1

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