44. Given: A 250 V DC shunt motor whose armature resistance is 0.6 2 and field resistance is 150 2. At no-load but full main field flux, the motor speed is 1000 RPM and the no-load armature current is 5.0 A. When the motor is to develop a torque of 100 N.m, The value of the armature current will be: 24.56 A 19.51 A 53.19 A 42.4 A 45. Given: A 250 V DC shunt motor whose armature resistance is 0.6 2 and field resistance is 150 2. At no-load but full main field flux, the motor speed is 1000 RPM and the no-load armature current is 5.0 A. When the motor is to develop a torque of 100 N.m, The value of the motor speed is: 914 RPM 1150 RPM 751 RPM 909 RPM 46. Given: A 250 V DC shunt motor whose armature resistance is 0.6 2 and field resistance is 150 2. At no-load but full main field flux, the motor speed is 1000 RPM and the no-load armatu current is 5.0 A. When the motor is to develop a torque of 100 N.m, is required to develop a power of 10 kW at 1200 RPM (by applying field weakening), the value of the external field resistance that should be added to the field circuit should be: Ο 55 Ω 43.65 Ω end 23.90 02 Ο 36.05 Ω

44. Given: A 250 V DC shunt motor whose armature resistance is 0.6 2 and field resistance is 150 2. At no-load but full main field flux, the motor speed is 1000 RPM and the no-load armature current is 5.0 A. When the motor is to develop a torque of 100 N.m, The value of the armature current will be: 24.56 A 19.51 A 53.19 A 42.4 A 45. Given: A 250 V DC shunt motor whose armature resistance is 0.6 2 and field resistance is 150 2. At no-load but full main field flux, the motor speed is 1000 RPM and the no-load armature current is 5.0 A. When the motor is to develop a torque of 100 N.m, The value of the motor speed is: 914 RPM 1150 RPM 751 RPM 909 RPM 46. Given: A 250 V DC shunt motor whose armature resistance is 0.6 2 and field resistance is 150 2. At no-load but full main field flux, the motor speed is 1000 RPM and the no-load armatu current is 5.0 A. When the motor is to develop a torque of 100 N.m, is required to develop a power of 10 kW at 1200 RPM (by applying field weakening), the value of the external field resistance that should be added to the field circuit should be: Ο 55 Ω 43.65 Ω end 23.90 02 Ο 36.05 Ω

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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