1. A 50-hp, 250-V 1200 r/min dc shunt motor with compensatingwindings has an armature resistance (including the brushes,compensating windings, and interpoles) of 0.06 2. Its field circuithas a total resistance Radj + Rr of 50 22, which produces a no-loadspeed of 1200 r/min. There are 1200 turns per pole on the shuntfield winding (see figure). Find the speed of this motor when itsinput current isA. 100 A.B. 200 A.C. 300A.IEARAwww0.06 Ω50 ΩRadj12RFLFIL|¹FNF =1200 turnsVT = 250 V

In this question we need to find the speed of the given motor at following values of input current…

1. A 50-hp, 250-V 1200 r/min dc shunt motor with compensating windings has an armature resistance (including the brushes, compensating windings, and interpoles) of 0.06 2. Its field circuit has a total resistance Radj + Rr of 50 2, which produces a no-load speed of 1200 r/min. There are 1200 turns per pole on the shunt field winding (see figure). Find the speed of this motor when its input current is A. 100 A. B. 200 A. C. 300A. I EA RA 0.06 Ω 50 Ω Radj RF LF IL IF NE= 1200 turns VT = 250 V

1. A 50-hp, 250-V 1200 r/min dc shunt motor with compensating windings has an armature resistance (including the brushes, compensating windings, and interpoles) of 0.06 2. Its field circuit has a total resistance Radj + Rr of 50 2, which produces a no-load speed of 1200 r/min. There are 1200 turns per pole on the shunt field winding (see figure). Find the speed of this motor when its input current is A. 100 A. B. 200 A. C. 300A. I EA RA 0.06 Ω 50 Ω Radj RF LF IL IF NE= 1200 turns VT = 250 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

Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.

Question

1. A 50-hp, 250-V 1200 r/min dc shunt motor with compensating
windings has an armature resistance (including the brushes,
compensating windings, and interpoles) of 0.06 2. Its field circuit
has a total resistance Radj + Rr of 50 22, which produces a no-load
speed of 1200 r/min. There are 1200 turns per pole on the shunt
field winding (see figure). Find the speed of this motor when its
input current is
A. 100 A.
B. 200 A.
C. 300A.
I
EA
RA
www
0.06 Ω
50 Ω
Radj
12
RF
LF
IL
|¹F
NF =
1200 turns
VT = 250 V

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