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Flux produced in the rotor of the three-phase induction motor is due to
Induction principle
conduction principle
PM principle
Lorenz low
Induction principle
The correct answer is A) Induction principle. In a three-phase induction motor, the rotor experiences a rotating magnetic field generated by the stator windings, resulting in induced currents that create a torque.
The correct answer is A) Induction principle. In a three-phase induction motor, the rotor experiences a rotating magnetic field generated by the stator windings, resulting in induced currents that create a torque.
╬жтИЭIphтАЛ/F тАФ Relationship of flux to phase current and frequency
The induction principle operates by generating a rotating magnetic field through the phase currents in the stator. This field induces an electromotive force (EMF) in the rotor due to the relative motion between the rotor and the magnetic field, producing torque that drives the rotor.
Flux in the rotor is induced due to the rotating magnetic field.
This principle of operation is essential for the performance of the induction motor.
Simple construction and low maintenance.
Robust and reliable operation.
Lower efficiency compared to synchronous motors.
Slip and heating issues at high loads.
Pumps and fans.
Industrial machinery.
Standard value for efficiency in induction motors ranges from 85% to 95%.
Option B (conduction principle) is incorrect because it relates to semiconductor devices, not induction motors.
A is correct тАФ the flux produced in the rotor is due to the induction principle.
Understanding the principle of electromagnetic induction is essential for analyzing electrical machines and their functioning.