Transformers Magazine, Vol. 12 No. 4, 2025.
Original scientific paper
Aligning the economic and technical end of transformer life using online condition monitoring
Dr Bhaba P. Das
Abstract
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 timebased to condition-based operation supported informed decision-making while minimizing risk and maximizing return on investment, as presented in the paper.
Keywords
Technical End-of-Life; Economical End-of-Life; Condition Monitoring; Diagnostics; Asset Management
Hrčak ID:
337358
URI
Publication date:
6.10.2025.
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