Electrical Machines
What is/are the necessary conditions for parallel operation of alternators?

 Both 1and 2
 Frequency should be same
 Terminal voltage is same
 Speed of alternators should be same

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Electrical Machines
The synchronous motor can be started by

  providing damper winding in its rotor circuit.
  coupling it with a DC compound motor.
  any of the above methods.
  coupling it with a small AC induction motor called the pony motor.

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