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Power Systems

Power Systems
The insulator thickness on the conductor, in cables depends upon

 current
 power factor
 reactive power
 voltage

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Power Systems
Which of the following grounding is not practically preferred for protection of equipments?

 isolated grounding
 reactance grounding
All of these
 resistance grounding

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Power Systems
The load duration curve for a system is 8 hours 30 MW, 16 hours 25 MW and 24 hours 20 MW. The load factor will be

 1.3.
 0.44.
  0.83.
 0.25.

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Power Systems
The equation of area control error(ACE) is

 ACE = ΔPtie - 1/b.Δf
 ACE = ΔPtie + b.Δf
 ACE = ΔPtie - b.Δf
 ACE = ΔPtie +1/ b.Δf

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Power Systems
The total number of strands in a ACSR conductor are 7, then find the layer number?

 5
 7
 2
 3

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Power Systems
The rate of rise of restricting voltage depends upon the

 Inductance of the system.
  Inductance and capacitance of the system.
 Type of CB.
 Capacitance of the system.

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