Example 3.6 (H.W):- A DC shunt motor is mechanically coupled to a fan and is connected to a supply of 250 V. The armature resistance is 0.2 2 and the shunt field resistance is 250 2. When the fan rotates at 1000 rpm, the motor draws an input current of 26 A. It is required to change the speed of the fan such that the motor draws an input current of 51A, calculate, a) The new speed of the motor. b) The torque at 26 A and 51 A conditions.

Example 3.6 (H.W):- A DC shunt motor is mechanically coupled to a fan and is connected to a supply of 250 V. The armature resistance is 0.2 2 and the shunt field resistance is 250 2. When the fan rotates at 1000 rpm, the motor draws an input current of 26 A. It is required to change the speed of the fan such that the motor draws an input current of 51A, calculate, a) The new speed of the motor. b) The torque at 26 A and 51 A conditions.

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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