- A 3-phase, A connected, 400 V, 6 pole, 50 Hz, induction motor has the following equivalent circuit constant in ohm per phase referred to the stator: R₁=0.68, X₁= 2.78, R 2-0.564, X 2=4.82, Xm=25 and Rc = 220 Calculate: (a) The slip at maximum torque. (b) The value of additional rotor resistance to obtain maximum torque at starting.

- A 3-phase, A connected, 400 V, 6 pole, 50 Hz, induction motor has the following equivalent circuit constant in ohm per phase referred to the stator: R₁=0.68, X₁= 2.78, R 2-0.564, X 2=4.82, Xm=25 and Rc = 220 Calculate: (a) The slip at maximum torque. (b) The value of additional rotor resistance to obtain maximum torque at starting.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 6RQ: Name three factors that determine the torque produced by an induction motor.

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