Electric Motor Control
Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
bartleby

Concept explainers

Question
Book Icon
Chapter 45, Problem 1SQ
To determine

Explain why small DC motors can be connected directly across the line for starting.

Expert Solution & Answer
Check Mark

Explanation of Solution

Small DC motors can be started by connecting directly across the line with the help of a switch or a connector. It does not cause any damage because the motor can attain full speed very quickly due to small amount of rotor’s inertia and friction. Also a high starting current will decrease very quickly due to the fast increase in the counter-electromotive force.

Conclusion:

Thus, a motor that can be connected directly across a line for starting is explained.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
The joint density function of two continuous random variables X and Yis: p(x, y) = {Keós (x + y) Find (i) the constant K 0 2 0
Show all the steps please, Solve for the current through R2 if E2 is replaced by a current source of 10mA using superposition theorem. R5=470Ω R2=1000Ω R6=820Ω
Please solve it by explaining the steps. I am trying to prepare for my exam tomorrow, so any tips and tricks to solve similar problems are highly appreciated. Plus, this is a past exam I am using to prepare.
Knowledge Booster
Background pattern image
Electrical Engineering
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
Text book image
Electric Motor Control
Electrical Engineering
ISBN:9781133702818
Author:Herman
Publisher:CENGAGE L
Text book image
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning