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Power Systems

Power Systems
For symmetrical network, the neutral current is

 any of the above
 infinity
 zero
 maximum

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Power Systems
Which of the following material is not used as fuse element?

  Aluminium.
  Silver.
  Copper.
  Carbon.

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

 0.89
 1
 1.13
 1.25

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Power Systems
For distortion less line which of following relation are true

 R = O, G = O.
 R/L = C/G.
 None of above.
 R/L = G/C.

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Power Systems
If the inertia constant H = 8 MJ/MVA for a 50 MVA generator, the stored energy is

 400 MJ
 50 MJ
 200 MJ
 8 MJ

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Power Systems
If we increase the length of the transmission line, the charging current

 increases
None of these
 remains unaffected
 decreases

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