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Electrical Machines

Electrical Machines
Quadrature axis synchronous reactance is the ratio of

 Vmin to Imin.
 Vmin to Imax.
 Vmax to Imax.
 Vmax to Imin.

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Electrical Machines
A 3 - φ induction motor can also be referred to as a

  shunt motor.
  repulsion motor.
  transformer.
  asynchronous motor.

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Electrical Machines
At the instant of starting, the per unit slip of 3 - Φ induction motor is

  0.05.
  1.0.
  0.5.
  0.1.

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Electrical Machines
A 4 pole 50 Hz induction motor is running at 1470 rpm. What is the slip value?

 0.2
 0.4
 0.02
 0.04

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Electrical Machines
If direct axis reactance Xd and quadrature axis reactance Xq are equal, then reluctance power is

 minimum
 maximum
All of these
 zero

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Electrical Machines
When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop

  induction generator torque.
  synchronous motor torque.
  DC motor torque.
  induction motor torque.

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MORE MCQ ON Electrical Machines

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