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Power Systems

Power Systems
Units of incremental cost is

 Rs/hr
 RsMW/hr
 MWhr/Rs
 Rs/MWhr

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Power Systems
When a transformer is loaded, the secondary terminal voltage gains. That means power factor is

  leading.
 unity.
 lagging.
 zero.

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Power Systems
Pin insulators are used up to

 11 kV
 33 kV
 any voltage level
 120 kV

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Power Systems
Merze price current scheme protection is used in

  alternator.
  transformer.
  both A and B.
  bus bars.

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Power Systems
In a 400 KV network, 360 KV is recorded at a 400 KV bus. The reactive power absorbed by shunt rated for 50 MVAr, 400 KV connected at the bus is

 61.73 MVAr.
 45 MVAr.
  40.5 MVAr.
 55.56 MVAr.

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Power Systems
Which of the following methods is/are used for reactive or voltage compensation

All of these
 shunt capacitor
 series capacitor
 generation excitation control

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