What is the relative velocity in induction motor?

The direction of induced rotor current, according to Lenz’s law, is such that it will tend to oppose the cause of its production. As the cause of production of rotor current is the relative velocity between rotating stator flux and the rotor, the rotor will try to catch up with the stator RMF.

What is the corresponding speed of the rotor field with respect to the rotor?

Speed of the rotor field w.r.t. rotor structure is? Explanation: Speed of the rotor field w.r.t. rotor structure = 120*rotor frequency/Poles = 120*2/4 = 60 rpm = 6.28 rad/s.

What is the relative speed between stator flux and rotor flux?

Zero
The relative speed between stator and rotor fluxes is equal to Zero.

What is a stator and what does it do?

The stator is the coil of wire housed inside the engine case. A magnet on a shaft spins within the stator, creating alternating current (AC). That current travels along fairly heavy gauge wire through the case and into the rectifier/regulator which converts it to DC power, and at a consistent output.

What is rotor in induction motor?

The rotor is a moving component of an electromagnetic system in the electric motor, electric generator, or alternator. Its rotation is due to the interaction between the windings and magnetic fields which produces a torque around the rotor’s axis.

What is relation between rotor MMF and stator MMF?

d) rotor mmf = 0.70 * stator mmf. Explanation: First the stator mmf is calculated. Then it is multiplied by 0.85 to obtain the rotor mmf.

What is the speed of the rotor in RPM?

Rotor spinning Rotor speeds typically lie in the 120–210 m/s range, but mostly between 150 and 190 m/s, with a tendency to be higher with a smaller rotor diameter [6]. Currently the smallest rotor diameter used industrially is 28 mm with rotor speed up to 150,000 rpm, though some machines can reach 160,000 rpm.