The influence of core material on transient thermal impedances in transformers

International Conference on Microtechnology and Thermal Problems in Electronics 2015; International Conference on Smart Engineering of New Materials 2015

Górecki, K.^1 ; Górski, K.^1

Gdynia Maritime University, Department of Marine Electronics, Morska 83, Gdynia, Poland^1

关键词: Core material;    Measurements of;    Spatial orientations;    Thermal parameters;    Transient thermal impedances;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/709/1/012010/pdf
DOI  :  10.1088/1742-6596/709/1/012010

来源: IOP

【 摘 要 】

In the paper the results of measurements of thermal parameters of impulse-transformers containing cores made of different ferromagnetic materials are presented. Investigations were performed with the use of methods worked out in Gdynia Maritime University. The obtained results of measurements prove that the material of the core does not influence transient thermal impedance of the winding, whereas this parameter visibly changes with the change of spatial orientation of the transformer. In turn, the material of the core decides about transient thermal impedance of the core. Additionally, the influence of the core material on temperature distribution on the surface of the transformer was analysed.