@article{10902/23411,
year = {2021},
month = {11},
url = {http://hdl.handle.net/10902/23411},
abstract = {In oil-immersed power transformers, the insulation system is constituted of a dielectric oil-solid combination. The insulation oil generally used is mineral oil; however, this fluid has started to be substituted by natural and synthetic esters due to their higher biodegradability and flash point. The introduction of a new fluid in the insulation system of power transformers requires kinetic models that can estimate the degradation rate of insulation solids. The aim of this work was to go further in quantifying through different kinetic models the deterioration suffered by a commercial cellulose board (PSP 3055), which is one of the solid materials used in the insulation system of oil-filled transformers. The aging study was extended to cellulose board specimens immersed in two different oils (mineral and synthetic ester). It was obtained that there is a lower degradation when synthetic ester is used in the insulation system. Additionally, it can be concluded that the use of mechanical properties to quantify the degradation of the cellulose board through kinetic models provides information about the different behavior shown by PSP 3055 when different fiber direction angles are considered.},
organization = {This research was funded by State Scientific and Technical Research and Innovation Plan under the PID2019-107126RB-C22/AEI/10.13039/501100011033 grant agreement, financed by the Government of Spain},
publisher = {MDPI},
publisher = {Polymers, 2021, 13(23), 4150},
title = {Kinetic assessment of mechanical properties of a cellulose board aged in mineral oil and synthetic ester},
author = {Fernández Diego, Cristina and Ortiz Fernández, Alfredo and Carrascal Vaquero, Isidro Alfonso and Fernández Diego, Inmaculada and Renedo Estébanez, Carlos J.},
}