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Power Systems

Power Systems
Among the following which is not non conventional energy

  Nuclear.
  Tidal.
  Wind.
  Geothermal.

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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
 50 MJ
 500 MJ
 5 MJ

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Power Systems
A transmission line has a reactance of 1 Pu is operating at Vs = Vr = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power and the transmission line is compensated with a series capacitance of 0.5 Pu. Find the load angle with series capacitance compensation ?

 29°
 10.5°
 35.5°
 14.5°

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Power Systems
Which of following power plants is free from environmental problem

 Steam.
  Hydroelectric.
 Nuclear.
 Diesel engine.

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Power Systems
Counter poise is used for

 proper discharging of lighting surges
 more surge impedance
 less surge impedance
 reduce losses

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Power Systems
An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 500/5. The plug setting multiplier for a fault current of 5 kA is

 2
 6
 5
 8

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