Thank you ALL for the responses and comments.
I have referred to the latest test reports of all transformers after the one mentioned above and the results showed that level of Ethane in each oil sample has reduced.
I have also referred to the publication: "Transformer Diagnostics by the United...
I am working with a hydroelectric power plant with three generating units. The Generator Step-up Transformers for each unit are arranged in three single-phase with nine (9) phases in total.
Dissolved Gas Analysis was performed on each phase of the transformers on an annual basis (ASTM D3612)...
