Information on Corrosive Sulfur, Passivators, Dibenzyl Disulfide (DBDS), Mitigation Techniques and Tests to Perform
Corrosive sulfur and the effect that it has in transformer systems can be significant. The extent of the corrosion damage caused by sulfur, if left unchecked, can be so severe as to cause failure of the apparatus. The problems with corrosive sulfur have been recognized for quite some time. As early as 1948, F.M. Clark and E.L. Raab issued a report on the subject for method development within what is known now as ASTM Committee D 27 and eventually became ASTM Method D1275. The papers listed below are additional resources that you can use to understand the subject more clearly.
We have carefully prepared a selection of papers for your review and study:
The Role of Corrosive Sulfur In Transformers and Transformer Oil
Investigating Copper Sulfide Contamination in a Failed Large GSU Transformer
Update on The Corrosive Sulfur Issue in Oil-Filled Electrical Equipment
Passivators - What They Are and How They Work
Understanding Corrosive Sulfur Problems in Electric Apparatus an Electrical
Test Procedure for Determination of Copper Sulfide Contamination in Transformer Windings
Passivator Source Listing
An Update on Understanding Corrosive Sulfur Problems in Electric Apparatus Destruction of Dibenzyl Disulfide in Transformer Oil
Pruebas para Detectar Los Efectos del Sulfuro Corrosivo
Tests for Corrosive Sulfur Effects
Doble Engineering Company Materials Laboratory, Application Note: Covered Conductor Deposition Tests (Ccd)
Transformer Design And Sulphur Corrosion: The Missing Link?
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