Title :
Corrosive sulphur in mineral oils: its detection and correlated transformer failures
Author :
Tumiatti, V. ; Maina, R. ; Scatiggio, F. ; Pompili, M. ; Bartnikas, R.
Author_Institution :
Sea Marcony Technol., Collegno
Abstract :
The presence of corrosive sulphur in current insulating oils is discussed and typical winding failures in transformers and shunt reactors, due to the resultant formation of copper sulphide films and participate matter, are described. Different standard test methods for the detection of corrosive sulphur in oils are compared and ASTM D1275 is shown to be the most sensitive
Keywords :
copper compounds; corrosion testing; failure analysis; reactors (electric); transformer oil; transformer testing; transformer windings; ASTM D1275 standard test method; copper sulphide film; corrosive sulphur detection; insulating mineral oil; participate matter; shunt reactor; transformer failure; winding failure; Conductive films; Conductors; Copper; Dielectrics and electrical insulation; Inductors; Minerals; Oil insulation; Petroleum; Power transformer insulation; Power transformers;
Conference_Titel :
Electrical Insulation, 2006. Conference Record of the 2006 IEEE International Symposium on
Conference_Location :
Toronto, Ont.
Print_ISBN :
1-4244-0333-2
DOI :
10.1109/ELINSL.2006.1665342
