A question for all chemical experts: I want to know the effect of dissolved gases such as CO, CO2, acidity and mositure on the IFT (interfacial tension) of mineral oil.
For example, would I be right to say that as the mositure content increases, the IFT of the oil comes down?
And what will be the effect of acidity and dissolved gases such as CO on the interfacial tension on mineral oil?
Appreciate your thoughts and ideas. If possible, please also send me links to research literature on the properties of mineral oil and the effects of various gases on the IFT.
Acids in the oil originate from oil decomposition/oxidation products. Acids can also come from external sources such as atmospheric contamination. These organic acids are detrimental to the insulation system and can induce corrosion inside the transformer when water is present. An increase in the acidity is an indication of the rate of deterioration of the oil with SLUDGE as the inevitable by-product of an
acid situation which is neglected. The acidity of oil in a transformer should never be allowed to exceed 0.25mg KOH/g oil. This is the CRITICAL ACID NUMBER and
deterioration increases rapidly once this level is exceed.TCS has one of the most comprehensive insulating oil data management systems and interpretation guide. This system does graphical trend analysis for gas-in-oil data. The reports contain recommended action based on the latest accepted guidelines and TCS's extensive experience. TCS will maintain all customers historical records. These data are used to update and improve the diagnostic process. For details seethe attached link.
http://www.satcs.co.za/Transformer_Oil_Analysis.pdf
- Badges
- Science topic