1. In the lab you will be measuring the quantities: source voltage, field current,armature current, speed, and load torque. Suppose these measurements are 120V,0.25A, 2.6A, 1675rpm, and 1 Nm respectively,assuming shunt field connected DC motor, compute the back emf, field resistance,armature resistance, field loss, armature loss, power efficiency, starting torque,and no-load speed. Assuming stator flux to be linear function of field current,determine the motor constant.Suppose the connection is switched to series mode while maintaining the samevoltage and load torque = 0.028 Nm. Assuming stator flux to be linear functionof field current, detemine the new speed, armature/filed current, back emf,field loss, armature loss, power efficiency, and starting torque.

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1. In the lab you will be measuring the quantities: source voltage, field current, armature current, speed, and load torque. Suppose these measurements are 120V, 0.25A, 2.6A, 1675rpm, and 1 Nm respectively, assuming shunt field connected DC motor, compute the back emf, field resistance, armature resistance, field loss, armature loss, power efficiency, starting torque, and no-load speed. Assuming stator fiux to be linear function of field current, determine the motor constant. Suppose the connection is switched to series mode while maintaining the same voltage and load torque = 0.028 Nm. Assuming stator flux to be linear function of field current, detemine the new speed, amature/filed current, back emf, field loss, armature loss, power efficiency, and starting torque.

1. In the lab you will be measuring the quantities: source voltage, field current, armature current, speed, and load torque. Suppose these measurements are 120V, 0.25A, 2.6A, 1675rpm, and 1 Nm respectively, assuming shunt field connected DC motor, compute the back emf, field resistance, armature resistance, field loss, armature loss, power efficiency, starting torque, and no-load speed. Assuming stator fiux to be linear function of field current, determine the motor constant. Suppose the connection is switched to series mode while maintaining the same voltage and load torque = 0.028 Nm. Assuming stator flux to be linear function of field current, detemine the new speed, amature/filed current, back emf, field loss, armature loss, power efficiency, and starting torque.

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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