This paper presents a case study for a 30 MVA, 132/22 kV transformer in service for 35 years, which showed significant furans but stable DGA and other parameters. Online Condition Monitoring justified effective utilization of the transformer, i.e., load optimization to align technical and economic End-Of-Life within a planned replacement window in the next 5 years, achieving a 40-year economic End-Of-Life. This shift from time-based to condition-based operation supported informed decision-making while minimizing risk and maximizing return on investment, as presented in the paper.
Aligning the economic and technical end of transformer life using online condition monitoring
This paper presents a case study for a 30 MVA, 132/22 kV transformer in service for 35 years, which showed significant furans but stable DGA and other parameters.
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