A 1100 V, 50 Hz, delta connected induction motor has a star connected slip ring rotor with a phase transformation ratio of 3,8. The rotor resistance and standstil leakage reactance are 0,012 ohm/phase and 0,25 ohm/phase respectively. Neglecting the stator impendance and magnetising current determine the rotor current at 4 % slip with slip rings shorted. A. 123 A B. 430,5 A C. 560 A D. 742,3 A
A 1100 V, 50 Hz, delta connected induction motor has a star connected slip ring rotor with a phase transformation ratio of 3,8. The rotor resistance and standstil leakage reactance are 0,012 ohm/phase and 0,25 ohm/phase respectively. Neglecting the stator impendance and magnetising current determine the rotor current at 4 % slip with slip rings shorted. A. 123 A B. 430,5 A C. 560 A D. 742,3 A
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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A 1100 V, 50 Hz, delta connected induction motor has a star connected slip ring rotor with a phase transformation ratio of 3,8. The rotor resistance and standstil leakage reactance are 0,012 ohm/phase and 0,25 ohm/phase respectively. Neglecting the stator impendance and magnetising current determine the rotor current at 4 % slip with slip rings shorted.
A. 123 A
B. 430,5 A
C. 560 A
D. 742,3 A
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