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Power transformers are important equipment of a substation from the generation, transmission, and distribution of electricity to end users. The costs associated with purchasing a power transformer in the voltage class of 500 kV (100 MVA) are a few million. The fines imposed by regulatory agencies are significant when there is unavailability of equipment for any defect or failure. Therefore, energy...
Applying transformer health and risk scores allows us to provide a basic asset ranking. Transformer health scores are not, by themselves, an indicator of a transformer problem but they do provide a relatively simple means for scoring large populations of transformers. However the results are not absolute and there is still a need for engineering judgment. Including an indication of consequence allows...
This paper presents a methodology for risk-informed maintenance and reinvestment decision support in distribution companies. The methodology incorporates different analyses such as simplified risk analyses, quantitative risk analyses and economic analyses, into a multi-criteria decision support framework. The goal of the methodology is to provide formal decision support for asset managers in distribution...
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