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Power Systems

Power Systems
Pelton turbine is a ----------- turbine

 impulsive
 axial flow
 any of the above
 inward radial flow

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Power Systems
A 20 MVA generator has inertia constant of 0.5 pu. Find new value for 50 MVA base?

 0.2 pu
 0.4 pu
 0.1 pu
 0.5 pu

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Power Systems
Surge impedance loading (SIL) is represented by

 both 1 and 2
 Vph²/Zs
 Vl²/Zs
 Vl²*√(C/L)

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Power Systems
As the frequency of the system is increased, the charging MVAR

 decreases
None of these
 remains unaffected
 increases

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Power Systems
Mho relay is used for protection of

  medium lines.
  short lines.
  long lines.
  none of these.

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Power Systems
An isolated synchronous generator with transient reactance equal to 0.1 pu on a 100 MVA base is connected to the high voltage bus through a step up transformer of reactance 0.1 pu on a 100 MVA base. The fault level at the bus is

 400 MVA
 100 MVA
 500 MVA
 200 MVA

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