Question

Relationship between rotor frequency and stator frequency in three phase induction moto

Answer 1

Answer:

Explanation: s=0.04, rotor frequency = s*f = 0.04*50 = 2 Hz. Explanation: As both the rotor field and stator file rotate at synchronous speed, the relative speed between them is zero. ... A 4-pole, 3-phase slip ring induction motor is used as a frequency changer. Its stator is excited from 3-phase, 50 Hz supply

Answer 2

The relationship between rotor frequency and stator frequency in a three-phase induction motor is as follows:

• A 3-phase induction motor possesses a stator and a rotor.
• The stator transmits a 3-phase winding (called stator winding) while the rotor takes a short-circuited winding (named rotor winding). Only the stator winding is provided from 3-phase allotment.

The relative speed between the rotating area and stator spiralling is-

$ns - 0 = ns$

Thus, the frequency of induced current or voltage in the stator winding is -

$f = \frac{nsp}{120}$

The supply frequency, While the rotor is static,

,S= 1.

• The rotor rotates at synchronous speed and also rotor and stator rotate at a similar speed. Rotor and stator have stationary relationships to each other.