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Power Systems

Power Systems
Rating of fuse wire is expressed in

  Watts.
  Mho.
 ÃŽÂ©.
  Ampere.

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Power Systems
Find the relation between sub transient (X"), transient (X') and synchronous reactance (X) ?

 X" > X' >X
 X" < X' < X
 X" > X' < X
 X" < X' > X

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Power Systems
Mho relay is usually employed for protection of

 medium transmission lines only
 long transmission lines only
 any line
 short transmission lines only

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Power Systems
For 132 kV system, the reactance and capacitance up to the location of the CB is 3 Ω and 0.015 μF respectively. The maximum value of RRRV is

 12.2 kV / μs.
  9.01 kV / μs.
 10.01 kV / μs.
 2.0 kV / μs.

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Power Systems
Offset mho relay is used for the protection of equipment when

 failure of prime mover of the generator
 loss of excitation of the generator
None of these
 either 1 or 2

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

 8 MJ
 200 MJ
 400 MJ
 50 MJ

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