A shunt-connected 75kW, 250V DC motor has an armature resistance of 45mohm and a fieldresistance of 185ohm. When operated at 250V its no-load speed is 1850rpm. The motor isoperating under load at a terminal voltage of 250V and a terminal current of 290A.a. Calculate the motor speed, load power, load torque in this operation point.b. Assuming the load torque remains constant as a function of speed, calculate the motorspeed if the terminal voltage is reduced to 200V.Solution: na 1754 rpm; Pload = 69 kW; Tload = 372 Nm; nb = 1700 rpm; lb = 362 A=

Given a shunt connected 75 kW,250 V DC motor Armature resistance Ra= 45 mΩ Field resistance Rf=185…

Answered: A shunt-connected 75kW, 250V DC motor…

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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