Electrical Machines
The inertia constant H of a synchronous condenser is

 greater than that of hydro generator.
 greater than that of turbo alternator.
 equal to that of the effective length of the line.
  none of these.

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Electrical Machines
Slip speed is the

  sum of synchronous and rotor speeds.
  difference of actual rotor speed and synchronous speed.
  half of the sum of synchronous and rotor speeds.
  difference of synchronous speed and actual rotor speed.

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Electrical Machines
In a star - delta starting of an IM

  resistance is inserted in the rotor.
  applied voltage per stator phase is 57.7 % of a line volt
  reduced voltage is applied to the stator.
  line voltage is 57.7 % of stator voltage.

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