ETE - Knowledge - Transformer: Atmosphere in the Transformer
Oxidation
In the presence of oxygen, oxidation of the cellulose, in the insulation paper, breaks the polymer chains and produces by-products including water and acids. Acids promote hydrolysis as catalysts for the process. Water produced in these reactions promotes hydrolysis.
Oxygen, however, is not produced by the processes of hydrolysis, oxidation or pyrolysis, so any oxygen content in the oil enters from the atmosphere either during manufacture or through the breather system.
References
[1] Lelekakis, Nick, et al. “Ageing Rate of Paper Insulation Used in Power Transformers Part 2: Oil/Paper System with Medium and High Oxygen Concentration.” Ieee Transactions On Dielectrics And Electrical Insulation, vol. 19, no. 6, 2012, pp. 2009–2018.
Released for: Schneider Electric United Arab Emirates
Need help?
Product Selector
Quickly and easily find the right products and accessories for your applications.
Get a Quote
Start your sales enquiry online and an expert will connect with you.
Where to buy?
Easily find the nearest Schneider Electric distributor in your location.
Help Centre
Find support resources for all your needs, in one place.