The only contamination that could occur would be moisture absorption. Was the transformer stored with a nitrogen blanket?If a transformer oil sample test was conducted during the Site Acceptance Test (SAT) but the transformer has remained de-energized for over six months, should another oil sample test be performed to check for potential contamination
Transformer are installation on foundations already and not covered by blanket becuse they are IP66.The only contamination that could occur would be moisture absorption. Was the transformer stored with a nitrogen blanket?
The nitrogen blanket is gas that is purposely introduced into the transformer. It provides a buffer so that air is not drawn into the transformer tank as the cooling liquid expands and contracts.Transformer are installation on foundations already and not covered by blanket becuse they are IP66.
I would have to know the size to know if it has a N2 blanket. Only the substation transformers had N2.The nitrogen blanket is gas that is purposely introduced into the transformer. It provides a buffer so that air is not drawn into the transformer tank as the cooling liquid expands and contracts.
