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Power Systems

Power Systems
If sparsity of a 5 bus transmission line is 0.4. Find the number of transmission lines?

 6
 5
 3
 4

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Power Systems
If we increase the spacing between the phase conductors, the line capacitance

 decreases
None of these
 increases
 remains unaffected

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Power Systems
For a 500 Hz frequency excitation, a 100 km long power line will be modelled as

 long transmission line
 medium transmission line
 shunt capacitor
 any of the above

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

 skin effect
 corona effect
All of these
 ferranti effect

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Power Systems
The charging current of a 400 kV line is more than that of a 220 kV line of the same length?

 False
 either 1 or 2
 True
None of these

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Power Systems
Capacitance voltage transformer ( CVT ) is used to

 connect instruments on the LT side.
 reduce losses in a transmission line.
 none of these.
  improve the power factor of the transmission.

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