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Power Systems

Power Systems
Among the following which is not non conventional energy

  Tidal.
  Geothermal.
  Nuclear.
  Wind.

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Power Systems
Stability of a transmission line can be increased by

 shunt reactor
 series capacitor
 shunt capacitor
 both 1 and 2

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

 160 Ω
 400 Ω
 800 Ω
 200 Ω

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Power Systems
A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero?

 30.28 kV
 31.28 kV
 29.28 kV
 28.28 kV

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Power Systems
In thermal plant most of the energy is wasted in

 condenser
 boiler
 ESP
 turbines

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Power Systems
Which of the following statements is/are true? By increasing of temperature,

 neither 1 nor 2
 tension decrease
 sag increase
 both 1 and 2

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