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Power Systems

Power Systems
The corona loss on a particular system at 60 Hz is 1 kW/km per phase. What is the corona loss at 50 Hz in kW/km per phase?

 1.13
 1
 0.882
 0.93

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Power Systems
String efficiency depends upon

 no. of SCR in the string.
  all of these.
 voltage rating of one SCR.
 voltage rating of whole string.

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Power Systems
Find the number of strands of ACSR conductor for 3 layer transmission line?

 1
 29
 7
 19

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Power Systems
Which power plant cannot have single unit of 100 MW capacity

 Hydro electric power plant.
 Nuclear power plant.
  Diesel engine plant.
 Steam power plant.

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

 -1
 1
None of these
 0

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Power Systems
A 4 bus power system consists of 4 transmission lines, then find the sparsity of Y bus matrix?

 0.25
 0.4
 0.75
 0.5

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