×
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

Hydrogen in Transformer Oil
2

Hydrogen in Transformer Oil

Hydrogen in Transformer Oil

(OP)


What is the effect of Hydrogen in tranformer Oil?

How hydrogen form inside the transformer?

I hope you can help me on this..

pabs

RE: Hydrogen in Transformer Oil

Hydrocarbons in the oil have hydrogen in them, "Hydro".  Mechanisms that break down hydrocarbons can result in free hydrogen and many other gases.

Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com

RE: Hydrogen in Transformer Oil

Hydrogen is typically produced from arcing or corona internal to the transformer breaking down the hydrocarbons. You need to look at the other gasses presnet to determine the cause.

RE: Hydrogen in Transformer Oil

corona in oil?  result hydrogen

Would this point to the oil breaking down or inpure oil in the transformer?  

Would you do a test on the oil to see if it still has its insulating char?

RE: Hydrogen in Transformer Oil

Trends are more important than any one test result. Retest in a month or so. An upward trend would indicate an ongoing corona or arcing condition.

RE: Hydrogen in Transformer Oil

As I remember every type of malfunction in transformator leads to a different gases in transformator oil. I will try to find my notes where I have the table, but it is certainly some sort of malfunction. Try to find out from oil supplier that table it will give you a pretty good idea with what are you dealing with.

RE: Hydrogen in Transformer Oil

How does it get there?

Transformer oil consists of long chain molecules of hydrogen and carbon, hence the name "Hydrocarbon".  The long chains make a material that is liquid at normal temperatures and pressures.  These molecules are stable.  

However, if something happens inside your transformer to elevate the pressure and temperature, the long chains are broken into shorter bits.  some of these fragments of the formerly long chains are gases like ethane, methane, ethylene and hydrogen.

These gases typically dissolve in the oil and some of them migrate out of the oil into the gas space of your transformer where they can be detected and analyzed.  

Each gas is associated with a particular power level needed to crack the long chain of the oil into the smaller gas molecule.  Many scholarly papers are available concerning this phenomenon.

A phone call to Doble Engineering in Massachusetts will get you more information about gases in insulating oil than you ever thought possible.

old field guy

RE: Hydrogen in Transformer Oil

RE: Hydrogen in Transformer Oil

(OP)
Thank you all for your answers to me.
I appreaciated it very much.

But oldfieldguy your my MVP..


pabs

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