Quiz #2The motor in the figurehas a field resistance ofR = 0.03 241.67 Q and is runningRF + Rwith lA = 120 A. Its initialEAVE= 250 Vspeed is 1103 r/min andLFsupply a constant-torqueload. What will the speedof this motor be if VA isreduced to 200 V?

It is given that motor is supplying constant torque load therefore armature current will be…

Quiz #2 The motor in the figure +O has a field resistance of RA = 0.03 2 41.67 Q and is running RF + Radi with la = 120 A. Its initial VF= 250 V EA speed is 1103 r/min and LF supply a constant-torque load. What will the speed of this motor be if VA is reduced to 200 V?

Quiz #2 The motor in the figure +O has a field resistance of RA = 0.03 2 41.67 Q and is running RF + Radi with la = 120 A. Its initial VF= 250 V EA speed is 1103 r/min and LF supply a constant-torque load. What will the speed of this motor be if VA is reduced to 200 V?

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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Concept explainers

Motor Load, Torque, and Power Quality Requirement

An electric motor is a gadget that changes electrical energy into mechanical energy over to follow up on a mechanical burden. The weight set on the motor because of this mechanical movement is known as motor load. Appropriately matching the motor burden to the engine is vital to forestall harm to the engine or wasteful and unnecessary expensive activity. Engines perform such undertakings as moving a thing starting with one spot then onto the next, cutting it, changing its shape, etc. The motors might be evaluated as far as a few variables including power yield, voltage, current, and temperature. Harm to an engine might happen when it is worked under over the top engine load contrasted with its appraised limit.

Question

Quiz #2
The motor in the figure
has a field resistance of
R = 0.03 2
41.67 Q and is running
RF + R
with lA = 120 A. Its initial
EA
VE= 250 V
speed is 1103 r/min and
LF
supply a constant-torque
load. What will the speed
of this motor be if VA is
reduced to 200 V?

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