Electrical Machines
Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are identical as 4% from no load to full load. Consider the governors operating at 50Hz on no load. What is the operating frequency, if the load is 600 MW?

 45 HZ
 50 Hz
 48 Hz
 48.5 Hz

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Electrical Machines
In a stepper motor the detente torque means

  minimum of the static torque with the phase winding excited.
  maximum of the static torque with the phase winding unexcited.
  maximum of the static torque with the phase winding excited.
  minimum of the static torque with the phase winding unexcited.

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