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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

 LG
 LLL
 LLG
 LL

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Power Systems
Corona is accompanied by

 violet visible light
All of these
 power loss and interference
 hissing sound

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Power Systems
A transmission line is compensated with shunt capacitance Csh. After shunt compensation surge impedance loading will

None of these
 increases
 decreases
 remains unaffected

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Power Systems
A 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation?

 0.8 lag
 0.6 lead
 0.6 lag
 0.8 lead

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

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

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Power Systems
Which of the following is low specific speed turbine?

 Kaplan
None of these
 Pelton
 Francis

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