Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
Problem 7 A three-phase, 60 Hz, six-pole, Y-connected, 480-V induction motor has the following parameters: R₁ = 0.20, R2 = 0.102, Xeq = 50 The load of the motor is a drilling machine. At 1150 rpm, the load torque is 150Nm. The motor is driven by a constant v/f technique. When the frequency of the supply voltage is reduced to 50 Hz, calculate the following: a. Motor speed b. Maximum torque at 60 Hz and 50 Hz c. Motor current at 50 Hz Hint: For a drilling-machine load (an inverse-speed-characteristics load) T₁/T₂ = n2/n1 = (1-S₂)/(1-1)

Problem 7 A three-phase, 60 Hz, six-pole, Y-connected, 480-V induction motor has the following parameters: R₁ = 0.20, R2 = 0.102, Xeq = 50 The load of the motor is a drilling machine. At 1150 rpm, the load torque is 150Nm. The motor is driven by a constant v/f technique. When the frequency of the supply voltage is reduced to 50 Hz, calculate the following: a. Motor speed b. Maximum torque at 60 Hz and 50 Hz c. Motor current at 50 Hz Hint: For a drilling-machine load (an inverse-speed-characteristics load) T₁/T₂ = n2/n1 = (1-S₂)/(1-1)

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
100%

Please try to explain the steps. Question below.

Problem 7 A three-phase, 60 Hz, six-pole, Y-connected, 480-V induction motor has the following parameters: R₁ = 0.20, R2 = 0.102, Xeq = 50 The load of the motor is a drilling machine. At 1150 rpm, the load torque is 150Nm. The motor is driven by a constant v/f technique. When the frequency of the supply voltage is reduced to 50 Hz, calculate the following: a. Motor speed b. Maximum torque at 60 Hz and 50 Hz c. Motor current at 50 Hz Hint: For a drilling-machine load (an inverse-speed-characteristics load) T₁/T₂ = n₂/n1 = (1-S₂)/(1-S₁)
Transcribed Image Text:Problem 7 A three-phase, 60 Hz, six-pole, Y-connected, 480-V induction motor has the following parameters: R₁ = 0.20, R2 = 0.102, Xeq = 50 The load of the motor is a drilling machine. At 1150 rpm, the load torque is 150Nm. The motor is driven by a constant v/f technique. When the frequency of the supply voltage is reduced to 50 Hz, calculate the following: a. Motor speed b. Maximum torque at 60 Hz and 50 Hz c. Motor current at 50 Hz Hint: For a drilling-machine load (an inverse-speed-characteristics load) T₁/T₂ = n₂/n1 = (1-S₂)/(1-S₁)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Three phase Induction Motor
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)
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