Analysis of vibration forces of magnetic origin acting on tank walls of power transformer
| Autor: | Pawel Witczak, Michal Swiatkowski |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science business.industry Mechanical Engineering 020208 electrical & electronic engineering 02 engineering and technology Structural engineering Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Vibration Mechanics of Materials 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering business |
| Zdroj: | International Journal of Applied Electromagnetics and Mechanics. 67:35-45 |
| ISSN: | 1875-8800 1383-5416 |
| DOI: | 10.3233/jae-201622 |
| Popis: | The aim of this paper is to present the impact of the leakage flux on magnetic shunts and tank walls of power transformers from vibrational point of view. The experimental studies of the large power transformers show that tank vibrations and the resulting acoustic emission at load condition are significantly higher than at no-load condition. The paper presents 3D finite elements model in electromagnetic domain used for the analysis of magnetic forces applied to shunts at rated short circuit state which are the origin of tank vibration. The main finding of the work is that forces equivalent to the magnetostriction deformation of the shunt interior are comparable with magnetic forces resulting from the stray field and applied to the shunts’ surface. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |