(b) A 2 pole 220 v, 100A, and 850 rpm separately excited DC motor has an armature resistance of 0.15 0. Two field coils are connected in parallel and used to drive a load with the torque of T = 400 – 0.2N, Nm Where N is the motor speed in rpm. Armature voltage control and two field windings connected in series are used in speed control below and above the rated, respectively. (i) Calculate the motor armature current and speed when the armature voltage is reduced to 110V. (ii) Examine the motor speed and current when field coils are connected in series.
(b) A 2 pole 220 v, 100A, and 850 rpm separately excited DC motor has an armature resistance of 0.15 0. Two field coils are connected in parallel and used to drive a load with the torque of T = 400 – 0.2N, Nm Where N is the motor speed in rpm. Armature voltage control and two field windings connected in series are used in speed control below and above the rated, respectively. (i) Calculate the motor armature current and speed when the armature voltage is reduced to 110V. (ii) Examine the motor speed and current when field coils are connected in series.
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...
Related questions
Question
Transcribed Image Text:(b) A 2 pole 220 V, 100A, and 850 rpm separately excited DC motor has an armature
resistance of 0.15 0. Two field coils are connected in parallel and used to drive a
load with the torque of
TL = 400 – 0.2N, Nm
Where N is the motor speed in rpm.
Armature voltage control and two field windings connected in series are used in
speed control below and above the rated, respectively.
(i)
Calculate the motor armature current and speed when the armature voltage
is reduced to 110VV.
(ii) Examine the motor speed and current when field coils are connected in
series.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,