3D-FEM simulation for investigation of load noise of power transformers verified by measurements

3D-FEM simulation for investigation of load noise of power transformers verified by measurements

A 3D finite element model is developed to simulate the load noise in order to understand the acoustic and mechanical behavior of power transformers. As we can show, a 3D model is required to get a good correlation between the simulation and measurements, because some resonant modes are not axisymmet...

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Bibliographische Detailangaben
Hauptverfasser: Hamberger, Peter, Hauck, Andreas, Kaltenbacher, Manfred, Bachinger, Florian, Dibold, Markus, Irschik, Hans, Hackl, Alexander
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Acoustic measurements
Acoustic noise
Conducting materials
Conductors
Copper
Finite element methods
Noise measurement
Power measurement
Power transformers
Vibrations
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Beschreibung
Zusammenfassung:A 3D finite element model is developed to simulate the load noise in order to understand the acoustic and mechanical behavior of power transformers. As we can show, a 3D model is required to get a good correlation between the simulation and measurements, because some resonant modes are not axisymmetric and the phases influence each other. To reduce the complexity of the model we investigated different simplifications of the windings and their effect on the vibration results.
DOI:10.1109/ICELMACH.2008.4800062