Title :
Long term stability of insulating mineral oils following their corrosive sulfur removal
Author :
Scatiggio, F. ; Maina, R. ; Tumiatti, V. ; Pompili, M. ; Bartnikas, R.
Author_Institution :
Terna Spa, Venezia, Italy
Abstract :
Over the last decade dibenzyl-disulphide (DBDS) was found to be present in many mineral insulating oils. This sulfur compound tends to react with the copper of the windings, forming harmful by-products (Cu2S). Different techniques to overcome the problem such as metal deactivation, oil change and chemical treatment, have been applied. The long term effectiveness of these techniques is examined and compared.
Keywords :
chemical analysis; insulating oils; machine windings; sulphur compounds; chemical treatment; corrosive sulfur removal; dibenzyl disulphide; insulating mineral oils; metal deactivation; oil change; windings; Chemicals; Copper; Inductors; Minerals; Oil insulation; Passivation; Petroleum; Power transformer insulation; Shunt (electrical); Stability;
Conference_Titel :
Electrical Insulation (ISEI), Conference Record of the 2010 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-6298-8
DOI :
10.1109/ELINSL.2010.5549746
