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Power Systems

Power Systems
The sequence components of the fault current are as follows: IR1 = j1.5 pu, IR2 = -j0.5 pu, IR0 = -j1. The type of fault is

 LLG
 LL
 LLL
 LG

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Power Systems
A power system network has n nodes, Z33 of its bus impedance matrix is j0.5 pu. The voltage at node 3 is 1.3∠ -10°. If capacitor is having reactance of -j3.5 pu is now added to the network between node 3 and reference node, the current drawn by the capacitor in pu is

 0.325∠ -100°
 0.725∠ 80°
 0.433∠ 80°
 0.371∠ -100°

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Power Systems
India’s largest thermal power station is located at

 Neyveli.
 Kota.
 Chandrapur.
 Sarni.

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Power Systems
A diesel power station has fuel consumption of 0.28 Kg per kWh. The calorific value of fuel is being 10000 KCal / kg. Determine the overall efficiency

 40.85 %.
 40 %.
  30.26 %.
  30.7 %.

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Power Systems
Ferranti effect can be compensated by which of the following

 shunt reactor
 shunt capacitor
 series capacitor
 both 1 and 2

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Power Systems
Which of the following is an impulse turbine

  Francis turbine.
  Pelton turbine.
  Kaplan turbine.
  None of above.

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