Investigation of load noise generation of large power transformer by means of coupled 3D FEM analysis

• Michael Ertl ^[1] ; Hermann Landes ^[2]
  1. [1] Siemens AG PTD Transformers Technology and Innovation
  2. [2] WisSoft GmbH
• Localización: Compel: International journal for computation and mathematics in electrical and electronic engineering, ISSN 0332-1649, Vol. 26, Nº 3 (Selected papers from the 12th International IGTE Symposium on Numerical Field Calculation in Electri), 2007, págs. 788-799
• Idioma: inglés
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• Resumen

  • Purpose – This paper aims to present a 3D numerical analysis of the load noise generation associated with large, oil immersed three‐phase power transformers.

    Design/methodology/approach – After studying the mechanical behavior of the winding structures of transformers, the results of coupled magneto‐mechanical simulations are presented.

    Findings – An appropriate modeling strategy of the vibratory winding structures of transformers is necessary to reduce complexity and computational resources.

    Originality/value – The presented model setup describes a fully transient, 3D coupled magneto‐mechanical simulation of the vibratory winding structure of large power transformers.