20.500.12556/DKUM-80818 Določitev robnih pogojev za izračun temperaturnih razmer z metodo končnih elementov na primeru varovalčnega ločilnega stikala magistrsko delo Determination of the boundary conditions for calculating the temperature conditions using the finite element method on an example of a fuse switch disconnector Pri razvoju nove generacije varovalčnega ločilnega stikala smo se odločili za uporabo 3D simulacij z metodo končnih elementov v programskem paketu Comsol Multiphysic. V omenjenem programu smo želeli izdelati simulacijski model, ki bi omogočal vnos dejanskega 3D modela izdelka, s katerim bi lahko računali temperaturne razmere, ki nastajajo na izdelku pri različnih obratovalnih pogojih. Pri tem smo naleteli na osrednji problem magistrskega dela, uporabe robnih pogojev za prenos toplote s prevajanjem, prestopom in sevanjem. Namen je izdelati simulacijski model varovalčnega ločilnega stikala za analizo dejanskih temperaturnih razmer, kot jih je mogoče izmeriti v elektrotehničnem laboratoriju na izdelku. Pozneje bi bil takšen model uporaben tudi pri izračunih ostalih elektrotehničnih izdelkov za potrebe določitve temperatur med obratovanjem. Z namenom simulacij temperature smo morali ugotoviti postopek, po katerem bi določili robne pogoje za prehajanja toplote glede na električne lastnosti izdelka. Izdelali smo simulacijski model in določili postopek uporabe robnih pogojev prehoda temperature. Primerjalno smo varovalčno ločilno stikalo pomerili tudi v elektrotehničnem laboratoriju ter izmerjene in izračunane podatke primerjali med seboj. In the development of the new generation of the fuse switch disconnector, we decided to use 3D simulations with the finite element method in the Comsol Multiphysics software package. By using this software package, we wanted to create a simulation model in which would be possible to import the 3D model of the product, which could calculate the temperatures generated on the product under different operating conditions. Here we met the major issue of this master dissertation. The issue is using the boundary conditions for the temperature transition by conduction, convection, and radiation. The purpose of the simulation program would be to calculate the actual values of the temperatures on the product, as can be measured in an electrotechnical laboratory. Later will be that kind of simulation model useful for calculation temperatures of other electrical products between operating. For this purpose, it was necessary to determine the procedure for determining the boundary conditions of the temperature transition relative to the electrical properties of the product. A simulation model was developed and the process of determining the boundary conditions of the temperature transition was determined. Comparatively, the fuse switch disconnector was also measured in an electrotechnical laboratory, and the measured and calculated data were compared to each other. prehodni pojavi temperatura kondukcija konvekcija talilni vložek varovalčno ločilno stikalo Comsol Multiphysics transient temperature conduction convection fuse-link fuse switch disconnector Comsol Multiphysics true true false [A. Jerman] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2021-10-22 09:28:54 2021-11-05 13:58:07 2022-08-09 23:59:36 0000-00-00 00:00:00 2021 0 Maribor 0 Maribor XV, 87 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 [004.942:536.2]:621.316(043.2) 86208003 MAG_Jerman_Anze_2021.pdf MAG_Jerman_Anze_2021.pdf 1 08B186D77A0082B8D95D0B1FB3F205B4 e27d6fc508c29d0e5b0f1634e60f362ed5c998f1d3d2d75b37b1ca5027a37f92 78a76573-330a-11ec-886c-00155d000105 20.500.12556/dkum/52de2a6b-1b81-4428-82ce-e576f69f6081 https://dk.um.si/Dokument.php?lang=slv&id=155103 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0