1. The rotor of a certain 20HP,six-pole, 60Hz induction motor has equivalent resistance and equivalent reactance per phase of 0.12 and 0.452, respectively. The Blocked-rotor voltage/phase (EBR) is 150V. if the rotor is turning at 1164rpm, determine (a) synchronous speed; (b) slip; (c) rotor impedance; (d) rotor current; (e) rotor current if changing the shaft load resulted in 1.24 slip; (f) speed for the condition in (e); (g) total three- phase apparent power crossing the air-gap; (h) its reactive and active components; (i) power factor of the rotor

1. The rotor of a certain 20HP,six-pole, 60Hz induction motor has equivalent resistance and equivalent reactance per phase of 0.12 and 0.452, respectively. The Blocked-rotor voltage/phase (EBR) is 150V. if the rotor is turning at 1164rpm, determine (a) synchronous speed; (b) slip; (c) rotor impedance; (d) rotor current; (e) rotor current if changing the shaft load resulted in 1.24 slip; (f) speed for the condition in (e); (g) total three- phase apparent power crossing the air-gap; (h) its reactive and active components; (i) power factor of the rotor

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter11: Transient Stability

Section: Chapter Questions

Problem 11.1P

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