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Power Systems

Power Systems
The rating of CB is in terms of

  VAR.
  current.
  volt - ampere.
  voltage.

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Power Systems
Find the relation between sub transient (X"), transient (X') and synchronous reactance (X) ?

 X" > X' < X
 X" < X' < X
 X" < X' > X
 X" > X' >X

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Power Systems
Steady state stability of a power system is improved by

All of these
 single pole switching
 decreasing generator inertia
 using double circuit line instead of single circuit line

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Power Systems
Units of incremental cost is

 MWhr/Rs
 RsMW/hr
 Rs/hr
 Rs/MWhr

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Power Systems
Which of following generating plants has the minimum operating cost

 Steam plant.
 Diesel plant.
 Hydroelectric plant.
 Nuclear plant.

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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
 DC series motor
 Three phase induction motor
 DC shunt motor

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