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Power Systems

Power Systems
Which of the following plants is/are base load plants

 nuclear
 run off river
 both 1 and 2
 pump storage

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Power Systems
A network containing 100 buses in which 10 are the voltage control buses, 5 are fixed shunt capacitor buses, 20 are the reactive power support buses, 6 are the generator buses. Find the size of the Jacobian matrix?

 164 × 164
 163 × 163
 165 × 165
 162 × 162

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Power Systems
In relay coil which is used?

  Current transformer.
  Potential transformer.
  Power transformer.
  Instrument transformer.

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Power Systems
What is the correct expression for the electrical power developed by

 ( 7 / 75 ) × WQHη.
 75 × 0.736 × WQHη.
 ( 75 / 0.736 ) × WQHη.
  ( 0.763 / 75 ) × WQHη.

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Power Systems
Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable?

  Vacuum CB.
 Air blast CB.
 Oil CB.
 Any of these.

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Power Systems
The shape of the disc of an induction disc relay is

  circular.
  spiral.
  elliptical.
  none of these.

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