Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
Q1.A. The following results give the open circuit characteristic of de shunt generator running at 300 r.p.m. Va (V) 7.5 92 132 162 183 190 212 Ir (A) 2 3 4 7 Determine the voltage to which machine will excite if field circuit resistance is 40 2 and run at 375 r.p.m. a. What additional resistance would have to be inserted in the field circuit to reduce the voltage to 200v at 375 r.p.m? b. Without additional resistance determine the load current supplied by the generator when its terminal voltage is 200v. ignore armature reaction and assume speed is constant (armature resistance is 0.42).

Q1.A. The following results give the open circuit characteristic of de shunt generator running at 300 r.p.m. Va (V) 7.5 92 132 162 183 190 212 Ir (A) 2 3 4 7 Determine the voltage to which machine will excite if field circuit resistance is 40 2 and run at 375 r.p.m. a. What additional resistance would have to be inserted in the field circuit to reduce the voltage to 200v at 375 r.p.m? b. Without additional resistance determine the load current supplied by the generator when its terminal voltage is 200v. ignore armature reaction and assume speed is constant (armature resistance is 0.42).

Introductory Circuit Analysis (13th Edition)
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...
See similar textbooks
icon
Related questions
Question
I need the answer as soon as possible
Q1.A. The following results give the open circuit characteristic of de shunt generator running at 300 r.p.m. Va (V) 7.5 92 132 162 183 190 212 Ir (A) 4 7 Determine the voltage to which machine will excite if field circuit resistance is 40 2 and run at 375 r.p.m. a. What additional resistance would have to be inserted in the field circuit to reduce the voltage to 200v at 375 r.p.m? b. Without additional resistance determine the load current supplied by the generator when its terminal voltage is 200v. ignore armature reaction and assume speed is constant (armature resistance is 0.42). B. Does the transformer works at its maximum efficiency? When and how?
Transcribed Image Text:Q1.A. The following results give the open circuit characteristic of de shunt generator running at 300 r.p.m. Va (V) 7.5 92 132 162 183 190 212 Ir (A) 4 7 Determine the voltage to which machine will excite if field circuit resistance is 40 2 and run at 375 r.p.m. a. What additional resistance would have to be inserted in the field circuit to reduce the voltage to 200v at 375 r.p.m? b. Without additional resistance determine the load current supplied by the generator when its terminal voltage is 200v. ignore armature reaction and assume speed is constant (armature resistance is 0.42). B. Does the transformer works at its maximum efficiency? When and how?
Expert Solution
steps

Step by step

Solved in 3 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,
SEE MORE TEXTBOOKS