Jump to content
Sign in to follow this  
Yuneng

Testing Transformer Oil Moisture Content

Recommended Posts

Transformer oil testing is performed for both new products and for regenerated oil. Water content is a part of the testing is both cases.

Knowing the amount of water in the oil is indicative of its quality, and provides information on the causes of oil and solid insulation dielectric strength deterioration.

The highest allowed concentration of water in transformer oil depends on the type of equipment; on average, no more than 10-20 ppm (grams per ton) is allowed. Detecting such a small amount of water is not simple, and the methods used for the testing must be highly precise and sensitive. Higher concentrations of water may cause transformer failure, so using a transformer oil dehydration machine is a mandatory measure.

Some of the most common methods of measuring the amount of water in the transformer oil are:

filtration;

gas chromatography;

mass spectrometry;

the calcium hydride method;

photoacoustic spectroscopy.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

×
×
  • Create New...