The Temperature State of a Plane Polymer Dielectric Layer with Temperature-Dependent Heat Conduction

The purpose of the study was to build a mathematical model describing the steady-state temperature state of a planar homogeneous layer of a polymer dielectric with a nonmonotone temperature dependence of the dielectric losses at an alternating voltage. The model was assigned to the integral relation which takes into account a possible change in the heat conduction coefficient of a dielectric with temperature. The quantitative assay of the integral relation allows us to determine the conditions under which dielectric thermal breakdown occurs, as well as the limiting temperature distribution over the thickness of the layer before the onset of this state

The work was carried out within the framework of the state assignments of the Ministry of Education and Science of the Russian Federation (projects no. 9.7784.2017/БЧ and no. 9.2422.2017/ПЧ)

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