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Power Systems

Power Systems
Pumped storage plant is a

None of these
 base load plant
 both 1 and 2
 peak load plant

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Power Systems
A power system consists of 300 buses out of which 20 buses are generator buses, 25 buses are the ones with reactive power support buses and 15 buses are ones with fixed shunt capacitors. All the other buses are load buses. It is proposed to perform a load flow analysis for the system using Newton-Raphson Jacobian matrix is

 555×555
 540×540
 553×553
 554×554

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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
The rate of rise of re-striking voltage is dependent upon

 both 1 and 2
 inductance of the system only
 resistance of the system only
 capacitance of the system only

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Power Systems
Which of the following material is not used as fuse element?

  Copper.
  Carbon.
  Aluminium.
  Silver.

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Power Systems
Advantages of per unit system is/are

All of these
 It has units for all quantities
 Need of transformation ratio
 No units for any quantity

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