Q3// The armature of a 3810.5V per phase, three-phase, 4 pole, 1500 rpm star-connected altemator with 5 slot per pole per phase and coil span 1 to 13. The flux per pole is 94.3 m Wb. 1-Determine the number of conductors in series per phase. 2- Detemine the phase and line voltage at no-load if the flux decreased by 10%. Q4/A// The rotor of a 4 pole, 50 Hz, slip ring induction motor has a resistance of 0.25 ohm per phase and runs at 1440 pm at full-load. Calculate the extemal resistance per phase, which must be added to lower the speed to 1200 rpm, the torque being same as before. B/Answer for the following questions 1- What are the similarities and difference between de. generator and altemator. 2- Sketch the torque slip characteristic single induction motor. Why the value of starting torque is equal to zero.
Q3// The armature of a 3810.5V per phase, three-phase, 4 pole, 1500 rpm star-connected altemator with 5 slot per pole per phase and coil span 1 to 13. The flux per pole is 94.3 m Wb. 1-Determine the number of conductors in series per phase. 2- Detemine the phase and line voltage at no-load if the flux decreased by 10%. Q4/A// The rotor of a 4 pole, 50 Hz, slip ring induction motor has a resistance of 0.25 ohm per phase and runs at 1440 pm at full-load. Calculate the extemal resistance per phase, which must be added to lower the speed to 1200 rpm, the torque being same as before. B/Answer for the following questions 1- What are the similarities and difference between de. generator and altemator. 2- Sketch the torque slip characteristic single induction motor. Why the value of starting torque is equal to zero.
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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