×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Generator efficiency

Generator efficiency

Generator efficiency

(OP)
Hi again guys I’m trying to get my head around the efficiency of generators. I’m looking at car alternator and can see this is an AC machine that then used a bridge rectifier to convert to DC this is where I’m thinking most of the efficiency is lost but want to understand in more depth?

RE: Generator efficiency

Efficiency determination will depend on where you draw your system boundaries.

xnuke
"Live and act within the limit of your knowledge and keep expanding it to the limit of your life." Ayn Rand, Atlas Shrugged.
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.

RE: Generator efficiency

This is quite a good article and many good comments.

There is a lot more to it.

Mainly resistance at high current flows in the windings.

https://electronics.stackexchange.com/questions/96...

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: Generator efficiency

Car alternators switched from commutators to bridge rectifiers primary to eliminate the manufacturing cost of the commutator, There is not really an efficiency penalty, as the commutator / brush assembly creates about the same voltage drop as the bridge rectifier.

RE: Generator efficiency

(OP)
Thank you guys!!!

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close