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Power Systems

Power Systems
Which of the following quantities are to be calculated for generator bus?

 Q and δ
 δ and V
 P and Q
 P and V

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Power Systems
Area under the daily curve divided by 24 gives

 maximum load
 units generated
 average load
 maximum demand

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Power Systems
Operator "a" rotates a vector

 either 1 or 2
 clock wise direction
 nether 1 nor 2
 anti clock wise direction

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Power Systems
For some given transmission line the expression for voltage regulation is given by (Vs - Vr)/Vr *100%. Hence,

 this must be a short line
 this may either be a medium line or short line
None of these
 this expression is true for any line

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Power Systems
For which one of the following types of motors, is the equal area criterion for stability applicable?

 Three phase synchronous motor
 Three phase induction motor
 DC series motor
 DC shunt motor

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Power Systems
Main bus bar protection scheme is /are

  both fault bus and differential protection.
  differential protection.
  fault bus protection.
  none of these.

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