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Power Systems

Power Systems
The value of inductance used for compensation of arcing grounds is

 3/ω²C
 ω²C/3
 3ω²C
 1/3ω²C

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Power Systems
Radio interference occur in telecommunication line due to

 electro magnetic induction
 both 1 and 2
 nether 1 nor 2
 electro static induction

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Power Systems
Which of the following buses is/are not PV buses?

 reactive power support buses
 both 1 and 2
 voltage control buses
 fixed shunt capacitor buses

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Power Systems
Which of the following contributes to the Rankine cycle efficiency improvement in a thermal power plant

 Use of high pressure.
 Reheat of steam an intermediate stages.
 Use of steam for heating of boiler feed water.
All of these

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Power Systems
Maximum power capacity of a transmission line can be increased by

 increasing voltage level
 either 1 or 2
 nether 1 nor 2
 decreasing reactance value

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Power Systems
Which of the following circuit breakers produce least arc energy?

 Plain oil CB.
 Air break CB.
  Air blast CB.
 Minimum oil CB.

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