×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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!
  • Students Click Here

*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

Jobs

Overhead transmission line regulation

Overhead transmission line regulation

Overhead transmission line regulation

(OP)
Where is a good place to look for standard equations on transmisison line regulation, line losses, and also, information on use of transposition structures to manage the above?

thanks

RE: Overhead transmission line regulation

Lots of things to look at in FAQ238-1287: What are good references for a Power Engineer?.  Transposition is much more of an ideal than a reality as most lines are not transposed and the lines that could benefit most from transposition are those least likely to be transposed, lines in parallel with other lines.

If you have two lines in parallel, one line need three positions or two intermediate transpositions but the other line then needs to be in all three positions for each of the three sections of the first line.  This is generally shown as eight intermediate transpositions but can be reduced to six if a configuration is continued unchanged past a transposition in the first line.  Add a third line and it now needs to be in each of the three positions for each segment of the second line, or nominally 27 sections.  The two line case isn't likely to happen let alone the three line case, but those are where the lack of transposition is going to show the most in the differing conductor impedances and differing mutual impedances.

RE: Overhead transmission line regulation

(OP)
Thanks David - that reference and your comments were very helpful

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!


Resources