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Q5. A 400V, 6-poles, 3-phases, A-connected, 50HZ wound rotor induction motor has R1=0.50, R:=0.20, X1-0.SO, X;-0.40, X-200. 1. Find the Pullout torque of this motor. 2. Find slip and speed at Pullout torque. 3. Find the starting torque of this motor. 4. Find Res that should be connected to the rotor in order to start the motor at maximum torque. 5. If a 1.4:1 autotransformer starter is used during starting, find the new starting torque

Q5. A 400V, 6-poles, 3-phases, A-connected, 50HZ wound rotor induction motor has R1=0.50, R:=0.20, X1-0.SO, X;-0.40, X-200. 1. Find the Pullout torque of this motor. 2. Find slip and speed at Pullout torque. 3. Find the starting torque of this motor. 4. Find Res that should be connected to the rotor in order to start the motor at maximum torque. 5. If a 1.4:1 autotransformer starter is used during starting, find the new starting torque

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Q5. A 400V, 6-poles, 3-phases, A-connected, 50HZ wound rotor induction motor has R1-0.50, R:=0.20, X1-0.80, X;-0.40, X-200. 1. Find the Pullout torque of this motor. 2. Find slip and speed at Pullout torque. 3. Find the starting torque of this motor. 4. Find Res that should be connected to the rotor in order to start the motor at maximum torque. 5. If a 1.4:1 autotransformer starter is used during starting, find the new starting torque
Transcribed Image Text:Q5. A 400V, 6-poles, 3-phases, A-connected, 50HZ wound rotor induction motor has R1-0.50, R:=0.20, X1-0.80, X;-0.40, X-200. 1. Find the Pullout torque of this motor. 2. Find slip and speed at Pullout torque. 3. Find the starting torque of this motor. 4. Find Res that should be connected to the rotor in order to start the motor at maximum torque. 5. If a 1.4:1 autotransformer starter is used during starting, find the new starting torque
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