Determining Natural Resonant Frequencies of Large Power Transformer Windings
نویسندگان
چکیده
Design, assembly process and preparation of windings for large power transformers are complex procedures. It is very important to recognize resonant frequencies the during design phase in order avoid increase vibrations, stresses or noise levels normal operation transformer. Increased vibrations can occur when frequency excitation close natural system. In that case amplitudes will increase, their values depend, among other factor, also on amount damping present Therefore, amplitude vibration at resonance, must be known. this work analytical calculation high voltage low windings, described. Additionally, numerical analysis (FEA) performed software package Ansys. Analysis contains descriptions geometry simplifications, boundary conditions, mesh validation applied loads. Finally, results obtained with compared results.
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ژورنال
عنوان ژورنال: Energija
سال: 2022
ISSN: ['0354-8651', '2812-7528']
DOI: https://doi.org/10.37798/2019684211