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Moisture dynamics in natural-ester filled transformers
Due to the global trend in the industry to work towards sustainability and clean energy, utilities and transformermanufacturers focus on the design of environmentally friendly devices. In this context, the use of natural estersas transformer's liquid insulation is becoming an habitual practice in distribution transformers. Thesefluidsmake possible the operation of transformers with lowerfire risk, what is important for certain applications.Additionally natural esters are biodegradable and their application minimizes the risk of soil contamination incase offluid's leak. One of the differential characteristics of esterfluids is that they have higher affinity formoisture than mineral oils, absorbing masses of water up to ten times greater than conventional insulatingfluidsunder similar working conditions. This fact changes the water distribution between the solid and liquid in-sulation that is typically found in mineral-oilfilled transformers. Moisture content in insulating materials re-mains as one of the most important parameters determining the life cycle of transformers, hence the importanceof fully understanding its behaviour. ; This work was supported in part by the European Union’s Horizon 2020 Research and Innovation Programme through the Marie Sklodowska-Curie under Grant 823969, in part by the Spanish Ministry of Innovation through Grants DPI2015-71219-C2 2-R and PID2019-107126RB-C21 and in part by the Colombian Ministry of Science, Technology, and Innovation through Grant 1106-715-50932.
Moisture dynamics in natural-ester filled transformers
Due to the global trend in the industry to work towards sustainability and clean energy, utilities and transformermanufacturers focus on the design of environmentally friendly devices. In this context, the use of natural estersas transformer's liquid insulation is becoming an habitual practice in distribution transformers. Thesefluidsmake possible the operation of transformers with lowerfire risk, what is important for certain applications.Additionally natural esters are biodegradable and their application minimizes the risk of soil contamination incase offluid's leak. One of the differential characteristics of esterfluids is that they have higher affinity formoisture than mineral oils, absorbing masses of water up to ten times greater than conventional insulatingfluidsunder similar working conditions. This fact changes the water distribution between the solid and liquid in-sulation that is typically found in mineral-oilfilled transformers. Moisture content in insulating materials re-mains as one of the most important parameters determining the life cycle of transformers, hence the importanceof fully understanding its behaviour. ; This work was supported in part by the European Union’s Horizon 2020 Research and Innovation Programme through the Marie Sklodowska-Curie under Grant 823969, in part by the Spanish Ministry of Innovation through Grants DPI2015-71219-C2 2-R and PID2019-107126RB-C21 and in part by the Colombian Ministry of Science, Technology, and Innovation through Grant 1106-715-50932.
Moisture dynamics in natural-ester filled transformers
Villarroel Rodríguez, Rafael David (author) / García de Burgos, María Belén (author) / García, Diego Fernando (author) / European Commission / Ministerio de Ciencia e Innovación (España)
2021-01-01
AR/0000026215
Article (Journal)
Electronic Resource
English
DDC:
690
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