Mehanska analiza jarmskih letev v energetskem transformatorju

Kopač, Rok (author), Mole, Nikolaj (mentor)

Ključen sestavni del energetskega transformatorja predstavlja sestav magnetnega kroga z opremo, od katerega so osnovni konstrukcijski element jarmske letev. Te so ene od najbolj obremenjenih komponent celotnega sestava, zato jih želimo trdnostno preveriti. V nalogi smo izvedli mehansko analizo s pomočjo metode končnih elementov. Tu smo obravnavali trodimenzionalni model zgornje in spodnje jarmske letve. Te smo analizirali v stanju dviga aktivnega dela, ko so obremenitve največje. Ugotovili smo, da so za obravnavani primer jarmske letve trdnostno primerne. Določili smo mesta koncentracij napetosti in opredelili nekaj smernic pri konstruiranju sklopa.

• Language: Slovenian
• Keywords: metoda končnih elementov, mehanska analiza, deformacijsko-napetostno stanje, energetski transformator, magnetni krog, jarmske letve
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [R. Kopač]
• Year: 2023
• Number of pages: XX, 68 str.
• PID: 20.500.12556/RUL-148513
• UDC: 620.17:621.314.214:519.61(043.2)
• COBISS.SI-ID: 164947715
• Publication date in RUL: 25.08.2023

KOPAČ, Rok, 2023, Mehanska analiza jarmskih letev v energetskem transformatorju [online]. Master’s thesis. Ljubljana : R. Kopač. [Accessed 25 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=148513

Secondary language

• Language: English
• Title: Mechanical analysis of clamping frame in power transformers

Abstract

The key component of the power transformer is the magnetic circuit, of which the yoke laths are the central structural element. These are the most stressed parts of the entire assembly, which is why we want to perform a mechanical analysis on them. In this assignment we performed a mechanical analysis whit finite element method. We analyzed three-dimensional models of upper and lower yoke laths in the state of manipulation of the active part, when the loads are biggest. We concluded that the design of yoke laths for the project in question are mechanically suitable for use. We determined the locations of stress concentrations and defined some guidelines for the process of modeling yoke laths.

• Keywords: finite element method, mechanical analysis, deformation-stress state, power transformer, magnetic circuit, yoke lath