×
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

Hydrostatically pressed stator bars

Hydrostatically pressed stator bars

Hydrostatically pressed stator bars

(OP)
I came across a document from a supplier that mentioned hydrostatic pressing of resin rich stator bars. I can't find much information on the net about this. The processes for VPI and ordinary resin rich using a mechanical press are well described. What are the advantages and disadvantages of a hydrostatic process from an electrical and mechanical point of view?

The application is two pole air cooled generators in the range of 100-200 MW with voltages less than 15 kV.

 

RE: Hydrostatically pressed stator bars

I think the purpose of pressing is to consolidate the insulation and also end up with a coil with flat/straight sides so it can easily be inserted into a slot ending up tight with no gaps.

"hydrostatic pressing" doesn't make much sense to me because it implies uniform pressure which does not tend to result in flat surfaces (in contrast mechanical press applies more pressure to high points and less to lowpoints which ends up with flat surface).

Maybe they meant mechanical press, driven with hydraulics?  

=====================================
(2B)+(2B)'  ?

RE: Hydrostatically pressed stator bars

Hello

The Technicall term is Hot Press, this machines are designed to manufacture resinrich coils, the coils are preformed coils with  straight parts insulated with resin tapes, the straight or active sides of the coil are tappered with special materials resin impregnated, due to this active coils most be heated up to the right temperature in order to consolidate this resins and also the process involves this active sides most be fixed (molded)and this is where the hydraulic presses acts.

Take a look of Rotary web site.

Regards

Carlos

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