Jean Sanchez, EDF: Transformer monitoring and sustainability outlook in EDF hydro
Conference 2023
This presentation is hosted by Jean Sanchez.
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Sustainable development has been an increasing concern in all technical fields for quite a while. At EDF, a power generation utility, we are looking more and more into detail at how to handle this issue practically. On the hydroelectric side, we aim to calculate the carbon impact of a whole power plant and then up to the transformer. Furthermore, we are still looking at the best way to correctly convert manufacturing and operation losses impact, and we will show a few examples of how we are looking at it.
On the other hand, we have been moving to monitor an increasing number of devices in our power plant (dams, runners, vibrations, temperatures, generators, etc.) for nearly ten years and have developed accordingly an organization that can handle it correctly on a large scale. We will present our organization at three levels of diagnosis, from the plant to specialized teams. Regarding transformers, we will show how we manage oil-dissolved gas analysis (DGA) and bushing monitoring since last year to prevent major failures in service.
Finally, we will present a few cases of how we utilized the benefits of good teamwork to deal with transformer monitoring systems and let transformers with inner faults in service for a specific period.
About the author
Jean Sanchez
EDFJean SANCHEZ is senior transformer engineer at EDF, French main generation utility, mostly on investigations, tests and its associated diagnosis, FAT, HV bushings, fleet assessments. He completed a PhD degree on power transformers fault diagnosis in 2011 with a French power transformer reparation factory.
