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Power Systems

Power Systems
Ideal plant load cfactor is

 1
 less than 1
 0
 greater than 1

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Power Systems
Find the surge impedance of a line when inductance is 160 mH and capacitance is 1µF?

 160 Ω
 800 Ω
 400 Ω
 200 Ω

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Power Systems
Buchholz relay is used for protection of

  bus bar.
  none of these.
  transformer.
  alternator.

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Power Systems
Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is

 125 MVA
 100 MVA
 400 MVA
 500 MVA

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Power Systems
The specific speed ( NS ) of turbine is given by

  N√( P ) / H1.25.
 P√( N ) / H3/2.
 N√( P ) / H2/3.
 none of these.

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Power Systems
Maximum power transfer in a transmission line can be obtained by

 either 1 or 2
 increasing voltage level
None of these
 reducing reactance

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