Electrical Machines
A 3 - Φ, 6 pole, 50 Hz IM is running at a full load speed of 980 rpm. If it delivers an air gap power of 98000 Watt, calculate the rotor ohmic loss?

  980 Watt.
  1960 Watt.
 1800 Watt.
 1920 Watt.

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Electrical Machines
The speed of a DC series motor is

 Inversely proportional to the armature current.
 Proportional to the square of the armature current.
 Proportional to field current.
 Proportional to the armature current.

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