Draw the circle diagram for a 5.6 kW, 400-V, 3-φ, 4-pole, 50-Hz, slip-ring induction motor from the following data : No-load readings : 400 V, 6 A, cos φ0 = 0.087 : Short-circuit test : 100 V, 12 A, 720 W. The ratio of primary to secondary turns = 2.62, stator resistance per phase is 0.67 Ω and of the rotor is 0.185 Ω. Calculate (i) full-load current (ii) full-load slip (iii) full-load power factor (iv) maximum torque full - load torque

Draw the circle diagram for a 5.6 kW, 400-V, 3-φ, 4-pole, 50-Hz, slip-ring induction motor from the following data : No-load readings : 400 V, 6 A, cos φ0 = 0.087 : Short-circuit test : 100 V, 12 A, 720 W. The ratio of primary to secondary turns = 2.62, stator resistance per phase is 0.67 Ω and of the rotor is 0.185 Ω. Calculate (i) full-load current (ii) full-load slip (iii) full-load power factor (iv) maximum torque full - load torque

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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