A certain shunt-connected DC motor has RA =1 Q, a total field resistance Rp Q, and VT = 200 V. At a speed of 1200 rpm, the rotational losses are 100 W and EA = 200 220 V. Determine the no-load armature current in Amps. Show two decimal places. Attach your work to support your answer.

A certain shunt-connected DC motor has RA =1 Q, a total field resistance Rp Q, and VT = 200 V. At a speed of 1200 rpm, the rotational losses are 100 W and EA = 200 220 V. Determine the no-load armature current in Amps. Show two decimal places. Attach your work to support your answer.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Question

A certain shunt-connected DC motor has RA =1 Q, a total field resistance Rp = 200
Q, and VT = 200 V. At a speed of 1200 rpm, the rotational losses are 100 W and EA =
%3D
220 V. Determine the no-load armature current in Amps.
Show two decimal places. Attach your work to support your answer.
(Recall the basic machine equations EA = Kpwm, Tdev = Kpla, and P = Twm: Also,
Wm = 2nnm/60 and 1 HP = 746 W.)
Your Answer:
Answer

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