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Power Systems

Power Systems
Which of the following power planets is the least reliable

  Wind.
 Tidal.
 Geothermal.
 Solar.

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Power Systems
A string type insulator has three units with self capacitance C and ground capacitance of 0.2 C having a string efficiency of

 82%
 76%
 80%
 78%

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Power Systems
Find the number of strands of ACSR conductor for 4 layer transmission line?

 37
 7
 1
 29

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Power Systems
Bundled conductors are used for EHV transmission lines primarily for reducing the

 surge impedance of the line
 voltage drop across the line
 corona loss
 copper loss

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Power Systems
A 200 MW capacity generator has a speed regulation of 4% for a frequency drop of 0.05 Hz. Find the power input supplied by the turbine for maintaining constant frequency?

 5 MW
 20 MW
 15 MW
 10 MW

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Power Systems
If the inertia constant H = 10 MJ/MVA for a 50 MVA generator, the stored energy is

 10 MJ
 500 MJ
 5 MJ
 50 MJ

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