the interaction of DBDS, benzyl mercaptan and components
in the oil such as copper, hydrogen, and oxygen were
provided, and a distinction was observed between sealed
transformers and free breathing conservator transformers.
This distinction is important as the failures of transformers
due to corrosive sulfur attack with oils containing DBDS
has been more prevalent in sealed transformers (nitrogen
blanketed and systems with bladders) then those with free
breathing conservator systems.