Question

The air gap between stator and rotor of a 3-phase induction motor ranges from

Answer 1

Answer:

0.4 mm to 4 mm

The rotor is separated from the stator by a small air-gap which ranges from 0.4 mm to 4 mm, depending on the power and the size of the motor.

Answer 2

Answer:

Between the rotor and stator in a 3-phase induction motor, the air gap ranges from $0.4$ $mm$ to $4$ $mm$.

Explanation:

• 3-phase input electrical power is converted to mechanical power as output by a 3-phase induction motor.
• 3-phase stator winding is carried by the stator and short-circuited winding is carried by the rotor.

Between the rotor and stator of an induction motor, the length of the air gap is made very small to decrease the value of magnetizing current. If this is not done the leakage flux increases.

So, between the stator and rotor of a 3-phase induction motor, the air gap ranges from $0.4$ $mm$ to $4$ $mm$.