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Power Systems

Power Systems
Transmission line parameters of the short transmission line are

 1,Z,Y,1
 1,0,Y,1
 Z,0,Y,1
 1,Z,0,1

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Power Systems
The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be

 400 Ω
 420 Ω
 210 Ω
 840 Ω

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Power Systems
If the diameter of the conductor is increased

 the inductance is decreased
 the resistance is increased
 no change in inductance and resistance
 the inductance is increased

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Power Systems
For flat voltage profile system, voltage regulation is

 any of the above
 100%
 50%
 0%

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Power Systems
Find the number of strands of ACSR conductor for 4 layer transmission line?

 37
 1
 29
 7

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Power Systems
The line current IR flowing into balanced delta connected load is - j5 - 3 A. If the phase sequence is RYB the phase current IYB is

 10.
  5.
 55.1.
 20.

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