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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?

 2d
 5d
 3d
 d

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Power Systems
Aluminium is now most commonly employed conductor material in transmission lines than copper because

 costlier
 it is more conductive
 it is cheaper and lighter
 its tensile strength is more

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Power Systems
For a fixed value of complex power flow in a transmission line having a sending end voltage V, the real power loss will be proportional to

 V.
 1 / V.
  1 / V2.
 V2.

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Power Systems
When bundle conductor are used in place of single conductor the effective inductance and capacitance will respectively

  decrease and increase.
 increase and decrease.
 decrease and remain unaffected.
 increase and remain unaffected.

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Power Systems
Specified quantities of slack bus are

 V and δ
 P and Q
 P and V
 P and δ

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Power Systems
Mho relay is usually employed for protection of

 short transmission lines only
 medium transmission lines only
 any line
 long transmission lines only

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