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Power Systems

Power Systems
In which of the following given faults, all the sequence currents are equal?

 LG
 LL
 LLG
 LLL

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Power Systems
Alternate formation and breakage of bubbles are called

  cavitations.
  surgfication.
All of these
  water hamming.

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Power Systems
At slack bus, which one of the following combinations of variables is not specified?

 P and Q
 P and V
 Q and V
 V and δ

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Power Systems
Stability of a transmission line can be increased by

 shunt capacitor
 shunt reactor
 series capacitor
 both 1 and 2

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Power Systems
For n bus power system size of Y bus matrix is

 n×n
 (n-2)×(n-2)
 (n-1)×(n-2)
 (n-1)×(n-1)

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Power Systems
If L and C are 4 mH and 0.0001 μF respectively a current chop of magnitude 50 Amp would induced a voltage

  100 kV.
 400 kV.
 50 kV.
  200 kV.

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