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Power Systems

Power Systems
The angular moment of 10 MVA generator is 0.2. Find the new value of angular moment for 20 MVA base?

 0.2 pu
 0.1 pu
 0.4 pu
 0.25 pu

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

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

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Power Systems
Ideal plant load cfactor is

 1
 greater than 1
 0
 less than 1

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Power Systems
Which of the following effects are associated with transmission line

 corona effect
All of these
 ferranti effect
 skin effect

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Power Systems
Which of the following statements is/are true? Due to corona,

 interference increases
All of these
 power loss increases
 charging current increases

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Power Systems
Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency?

 86%%
 50%
 75%
 90%

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