Autors: Hadzhiev, I. S., Malamov, D. V., Balabozov, I. S., Yatchev, I. S.
Title: Analysis of the influence of some factors on the electric field and thermal field of a high power low voltage fuse
Keywords: Electric field, finite element method, high power low voltage fuse, thermal field.

Abstract: The present paper numerically analyzes the influence of the contact resistance and the filler type of a high power low voltage fuse on both the electric and thermal field. A 3D computer model of a high power low voltage fuse, developed by the authors and described in a previous paper, has been used for this purpose. Results about the distribution of both the electric and the thermal field have been obtained in case of increased contact resistance and different fuse filler. Comparison of the obtained numerical results has been made.


  1. A. Alexandrov: “Electrical apparatus – part I (Electromagnet-ic and thermal problems)”, Heron press, Sofia, 2002, (in Bulgarian).
  2. H. Farahani, M. Sabaghi: “Analysis of current harmonic on power system fuses using ANSYS,” Indian Journal of Science and Technology, vol. 5, № 3, 2012.
  3. A. Plesca: “Thermal analysis of the fuse with unequal links using finite element method”, International Journal of Elec-trical, Computer, Energetic,Electronic and Communication Engineering, vol. 6, № 12, 2012.
  4. R. Tzeneva, Y. Slavtchev, V. Mateev: “Modeling of thermal field of electrical fuses for domestic application”, Proceeding of Technical University of Sofia, vol. 64, Issue 4, 2014, pp. 105-112.
  5. COMSOL Multiphysics 5.3 User’s Guide, COMSOL Inc., 2018.
  6. I. Hadzhiev, D. Malamov, I. Balabozov, I. Yatchev: “Experi-mental and Numerical Analysis of the Thermal Field in a High Power Low Voltage Fuse”, 16-th Conference on electri-cal machines, drives and power systems, 2019, pp. 504-508.
  7. S. Sendov: “Heat and mass transfer”, Sofia, 1993, (in Bulgarian).


14th International Conference on Applied Electromagnetics - ПЕС 2019, pp. 1-4, 2019, Serbia, University of Nis, Faculty of Electronic Engineering, ISBN 978-86-6125-212-9

Вид: публикация в международен форум