Power Systems
An alternator having an induced emf of 1.6 pu is connected to an infinite bus of 1 pu. If the bus bar has reactance of 0.6 pu and alternator has reactance of 0.2 pu, what is the maximum power that can be transferred?

 5 pu
 2.67 pu
 2 pu
 6 pu

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Power Systems
In a biased differential relay the bias is defined as the ratio of

  number of turns of restraining and operating coil.
  fault current and restraining coil current.
  operating coil current and restraining coil current.
  fault current and operating coil current.

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