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In this study, the thermal characteristics of copper windings with and without infiltration are compared. The winding’s radial thermal conductivity is the main concern. Due to the samples’ production process, they have a fill factor higher than 65%. The transient plane source approach is used to create samples, measure them, and compare the results to Hashin and Shtrikman approximations and FEM simulations. Results show that there is a clear link between measurements in experiments, the Hashin–Shtrikman estimate, and simulations run by the finite element method (FEM). It can also be noticed that the electrode winding that has been infiltrated is distinct from the winding that has not, showing that the method helps distinguish changes in the system. So, this integration strengthens the trust in the models and points to the possibility of accurate predictions in similar cases.

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Infiltrated and Non-infiltrated Thermal Characteristics of Electrical Windings with a High Fill Factor

  • 会议论文

  • 发表日期：

    2026年

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  • Dhiraj Kumar Singh,
  • Ramakant Upadhyay,
  • Beemkumar Nagappan,
  • Girija Shankar Sahoo,
  • Nabaa M. Bader,
  • Ramy Riad Al-Fatlawy

摘要

In this study, the thermal characteristics of copper windings with and without infiltration are compared. The winding’s radial thermal conductivity is the main concern. Due to the samples’ production process, they have a fill factor higher than 65%. The transient plane source approach is used to create samples, measure them, and compare the results to Hashin and Shtrikman approximations and FEM simulations. Results show that there is a clear link between measurements in experiments, the Hashin–Shtrikman estimate, and simulations run by the finite element method (FEM). It can also be noticed that the electrode winding that has been infiltrated is distinct from the winding that has not, showing that the method helps distinguish changes in the system. So, this integration strengthens the trust in the models and points to the possibility of accurate predictions in similar cases.