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Power Systems

Power Systems
A 3 layer and diameter of each strand is d, then find the total diameter of ACSR conductor?

 3d
 5d
 2d
 d

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Power Systems
A network containing 50 buses in which 10 are the voltage control buses, 6 are the generator buses. Find the size of the Jacobian matrix?

 34*34
 33*33
 84*84
 83*83

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Power Systems
Reactance relays are used for the protection of

All of these
 long transmission lines only
 short transmission lines only
 medium transmission lines only

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Power Systems
Which of the following is not a secondary nuclear fuel

 Pu239.
 U233.
 None of above.
  U235.

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Power Systems
The insulation of modern EHV is designed based on

 corona.
 RI.
 lightning voltage.
  switching voltage.

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Power Systems
The method of neutral grounding affects the

 positive sequence network
 negative sequence network
 zero sequence network
All of these

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