Title :
Experimental study of the role played by dibenzyl disulfide on insulating oil corrosivity-effect of passivator irgamet 39
Author :
Martins, Maria Augusta G ; Gomes, Ana R.
Author_Institution :
Dept. de Mater. Isolantes, LABELEC, Portugal
Abstract :
In this article, it is shown that a dibenzyl disulfide concentration greater than 10 mg·kg-1 in a nonpassivated oil makes the oil potentially corrosive, when tested in accordance with IEC 62535. The effect of Irgamet 39 on the oxidation stability of oil, and the thermal degradation of dibenzyl disulfide, including the role played by copper, are also discussed in the article.
Keywords :
IEC standards; corrosion protection; insulating oils; oxidation; passivation; sulphur compounds; IEC 62535; dibenzyl disulfide; insulating oil corrosivity; metal passivator Irgamet 39; oxidation stability; thermal degradation; Copper; IEC standards; Oil insulation; Oxidation; Petroleum; Testing; Thermal degradation; Thermal stability; DBDS, dibenzyl disulfide, Irgamet 39, metal passivator, insulating oil, corrosive sulfur;
Journal_Title :
Electrical Insulation Magazine, IEEE
DOI :
10.1109/MEI.2010.5511186
