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!

*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.

Jobs

'Limp wall' materials for 4kV transformer enclosure

'Limp wall' materials for 4kV transformer enclosure

(OP)
Hi,

I've been tasked with fixing an excessive noise issue from a 4kV transformer enclosure and looking into adding a limp wall layer to the inside of the enclosure to absorb airborn noise. The existing enclosure walls are .11" thk steel and about 6" from the transformer. The transformer is on isolation mounts.

I've read that I need a viscous rubber material sandwiched between two layers of sheet metal to create the limp wall effect. Can anyone recommend a suitable material and give advice on installing? If I go this route it will be done on-site so any advice on adhesives to use would also be useful.

Are there better approaches than using a limp wall to suppress the noise? I'm open to any and all ideas at this point.

Thanks,

Jon Crouch.

RE: 'Limp wall' materials for 4kV transformer enclosure

Are there ventilation slots etc in that enclosure?
Can you feel noticeable vibration (or better yet, measure for amplitude and frequency content) the enclosure walls at mid span and at the corners?
Do you know if the enclosure is isolation mounted to the transformer, also if the transformer is on isolators?

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


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