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Power Systems

Power Systems
Rating of fuse wire is expressed in

 ÃŽÂ©.
  Watts.
  Mho.
  Ampere.

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Power Systems
Asynchronous tie line is a

 DC transmission line
 either 1 or 2
 AC transmission line
None of these

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Power Systems
A power system network has n nodes, Z33 of its bus impedance matrix is j0.5 pu. The voltage at node 3 is 1.3∠ -10°. If capacitor is having reactance of -j3.5 pu is now added to the network between node 3 and reference node, the current drawn by the capacitor in pu is

 0.371∠ -100°
 0.433∠ 80°
 0.725∠ 80°
 0.325∠ -100°

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Power Systems
Length of short transmission line is up to

 150 km
 80 km
 40 km
 any of the above

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Power Systems
A 10 MVA generator has reactance of 0.2 pu. Find the new reactance value for 50 MVA base?

 5 pu
 1 pu
 0.2 pu
 0.25 pu

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Power Systems
Which of the following statements is/are true? In case of parallel transmission lines

 fault current increases
 both 1 and 3
 fault current reduces
 stability increases

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