Question 1: Does the speed of the motor change (increases/ decreases) when the load increase? Why?

Electric Motor Control
10th Edition
ISBN:9781133702818
Author:Herman
Publisher:Herman
Chapter31: Controllers For Two-speed, Two-winding (separate Winding) Motors
Section: Chapter Questions
Problem 1SQ: Excluding slip, at what speed (r/min) will an eight-pole, 60-hertz, 240-volt motor run?
icon
Related questions
Question
100%
I need a solution to the discussion, please
Question 1: Does the speed of the motor change (increases/ decreases) when the load
increase? Why?
Question 2 : Does the excitation current change if the motor current (Im) change? Ex-
plain.
Question 3 : What happens if we do not keep the terminal voltage of the motor constant
when the load is increased? Explain.
Question 4 : Why does the motor current increase with the increasing load? What hap-
pened to the voltage drop due to the armature resistance?
Question 5: Whit happens if we start the motor without a starter when it loaded with the
rated load? Observe and explain the reason.
Question 6 : Sketch the loading curve of the motor using the recorded values of Im, and
n, and State your final observations about the experiment and compare the torque values.
Transcribed Image Text:Question 1: Does the speed of the motor change (increases/ decreases) when the load increase? Why? Question 2 : Does the excitation current change if the motor current (Im) change? Ex- plain. Question 3 : What happens if we do not keep the terminal voltage of the motor constant when the load is increased? Explain. Question 4 : Why does the motor current increase with the increasing load? What hap- pened to the voltage drop due to the armature resistance? Question 5: Whit happens if we start the motor without a starter when it loaded with the rated load? Observe and explain the reason. Question 6 : Sketch the loading curve of the motor using the recorded values of Im, and n, and State your final observations about the experiment and compare the torque values.
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Coulomb's law
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.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Electric Motor Control
Electric Motor Control
Electrical Engineering
ISBN:
9781133702818
Author:
Herman
Publisher:
CENGAGE L
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning