@conference{10902/27936,
year = {2022},
url = {https://hdl.handle.net/10902/27936},
abstract = {Transformers’ operation and end of life mainly depend on its solid insulation. It is subjected to different stresses that cause the cellulose degradation. The ageing process is highly dependent on the moisture content and the correct impregnation. In the impregnation process, the dielectric coolant fluid is absorbed by the rest of the transformer porous materials, especially the insulating cellulosic materials, conditioning their properties. Due to the transition to a more sustainable energy system, new lines of research that explore alternatives to traditional mineral oils, as esters, are being developed. However, it is necessary to study their behaviour in the different manufacturing processes and during the operating life of the transformers for their future application. In this paper, the changes to be made in the impregnation process to include a soya-based liquid, taking the place of mineral oil, and considering as solid dielectrics Crepe Paper, Diamond Dotted Paper (DDP), Kraft and Presspaper (PSP) are studied.},
organization = {Work supported in part by the Spanish Ministry of Science and Innovation (National Research Project Asset Management of Biodegradable-Fluid-Based Transformers under Grant PID2019-107126RB-C22/AEI/ 10.13039/501100011033), by the Universities and Research Council of the Government of Cantabria (Project ‘‘Biodegradable Fluids in Electrical Power Transformers: Solid Dielectric Impregnation and Thermal Modeling with Thermal Hydraulic Network Models (THNM)’’ under Grant VP32, 2019-2), and by the University of Cantabria
(Industrial Doctoral Program 2016, Scholarship DI13).},
publisher = {Institute of Electrical and Electronics Engineers, Inc.},
publisher = {IEEE 4th International Conference on Dielectrics (ICD): procceedings, Palermo, Italy, 2022, 397-400},
title = {Adaptation of the impregnation conditions of cellulosic transformer solids to the use of natural esters},
author = {Tresgallo Arozamena, Sandra and Sanz Asensio, Jaime and Olmo Salas, Cristian and Méndez Gutiérrez, Cristina and Quintanilla Cavia, Pedro José and García Gómez, Diego Fernando and Vila Montañés, Carlos},
}