×
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

Spillway grounding of hydroelectric dam

Spillway grounding of hydroelectric dam

Spillway grounding of hydroelectric dam

(OP)
Hi there,

Does anyone have experience on designing gronding for spillway grounding of hydroelectric dam? I would like to have your comments on that?
Peter
 

RE: Spillway grounding of hydroelectric dam

(OP)
Do you recommend a separate grounding grid design system for the spillway or connect it to the hydroelectric station ground grid? The generator in the hydroelectric dam is connected by a high resistance to the grid and the fault current is limited. But if there is a fault at the line connected to the station when water flowing through spillway it acts as a zero potential path and creates a good return path for the fault at the line. Any recommendation?

RE: Spillway grounding of hydroelectric dam

I've no direct experience of this in respect of hydro stations, but one concern I would have is the possibility of dangerous touch or step potentials under fault conditions if the grounding systems are separate. The fact that the spillway grounding creates a good ground return path, by implication much better than without, suggests that this may be an issue.
Regards
Marmite

RE: Spillway grounding of hydroelectric dam

Would grounding the spillway cause some issues with the other plant pipeing?

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