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Power Systems

Power Systems
Find the propagation constant, if impedance is 10Ω and admittance is 10 â„§?

 5
 100
 1
 10

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Power Systems
Under over excitation synchronous phase modifier works as

 series capacitor
 shunt reactor
 any of the above
 shunt capacitor

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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
 5
 2000
 0.4

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Power Systems
Breaking current is a ------------------ value?

 average
 maximum
 any of the above
 RMS

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Power Systems
In thermal power plants the size of coal after crushing

  300 mm.
  20 - 25 mm.
 40 mm.
 200 - 205 mm.

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Power Systems
Skin effect depends on

 frequency
 conductivity
 relative permeability
All of these

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