Q2)A-A 220-V, three-phase, two-pole, 50-Hz induction motor is running at a slip of 5 percent. Find: (i) The speed of the magnetic fields in revolutions per minute (iii) The speed of the rotor in revolutions per minute (ii) The slip speed of rotor (iv) The rotor frequency.

Q2)A-A 220-V, three-phase, two-pole, 50-Hz induction motor is running at a slip of 5 percent. Find: (i) The speed of the magnetic fields in revolutions per minute (iii) The speed of the rotor in revolutions per minute (ii) The slip speed of rotor (iv) The rotor frequency.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter35: Harmonics 916

Section: Chapter Questions

Problem 3RQ: Would a positive-rotating harmonic or a negative-rotating harmonic be more harmful to an induction...

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Concept explainers

Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.

Question

Q2)A- A 220-V, three-phase, two-pole, 50-Hz induction motor is running at a slip of 5 percent. Find:
(i) The speed of the magnetic fields in revolutions per minute
(iii) The speed of the rotor in revolutions per minute
B-Why connect transformer in parallel mention the conditions ?
(ii) The slip speed of rotor
(iv) The rotor frequency.
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