The magnetic field produced in the stator of a three phase induction motor travels at _______

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ISRO (VSSC) Technician Electrician 2017 Official Paper
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  1. Rotating speed
  2. Asynchronous speed
  3. Synchronous speed
  4. Slip speed

Answer (Detailed Solution Below)

Option 3 : Synchronous speed
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Detailed Solution

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In a three phase induction motor,

a) The speed of stator is zero

b) The speed of stator magnetic field is synchronous speed

c) The speed of rotor magnetic field is synchronous speed

d) The speed of rotor is rotating speed

e) The difference between the rotor magnetic field and rotor is slip speed
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