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When two alternators are running in parallel, if prime mover of one of the alternator is disconnect, that alternator will:

When two alternators are running in parallel, if prime mover of one of the alternator is disconnect, that alternator will: Correct Answer runs as synchronous motor

Parallel operation of Two alternators: 

  • When two alternators are running in parallel, both machines are connected to the supply.
  • Both alternators produced voltage and current which gives to supply because both machines act as an alternator.
  • Consider two machines G1 and G2,  Both are connected in parallel.
  • If prime mover of machine G2 is disconnected, then G2  machine takes current coming from machine M1,
  • The same voltage is generated but the current is divided into machine G2 and the supply one.
  • So, the machine G2 takes current hence machine G2 runs as a synchronous motor.

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