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Power Systems

Power Systems
Rating of fuse wire is expressed in

  Watts.
  Mho.
  Ampere.
 ÃŽÂ©.

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Power Systems
The receiving end voltage for a long line under no load condition is

 less than the sending end voltage
 more than the sending end voltage
 any of the above
 equal to the sending end voltage

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Power Systems
If L and C are 4 mH and 0.0001 μF respectively a current chop of magnitude 50 Amp would induced a voltage

 50 kV.
  100 kV.
  200 kV.
 400 kV.

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Power Systems
Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line?

 0.52 Hz
 50 Hz
 0.48 Hz
 -0.52 Hz

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Power Systems
NTPC (National Thermal Power Cooperation) has its only thermal power generating unit in West Bengal at

 Farakka.
 Katwa.
 Durgapur.
 Bakreshwar.

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Power Systems
Frequencies must be same in which of the following line to exchange the power from one place to other place ?

 both 1 and 2
 Synchronous line
 No need of same frequency for exchange of power
 Asynchronous line

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