Study of overhead grounding wire and preformed armor rods port based on multi-physical field coupling

Because of the sharply rose temperature, only limited physical quantities can be obtained in the short-time impact experiment of overhead grounding wire and preformed armor rods port. Therefore, in order to further analyze various physical quantities in the process of short-circuit current passing through, a three-dimensional finite element simulation model of multi-physical field that electromagnetic, thermal-solid was established in this paper, and the current density distribution, transient temperature distribution and Von Mises stress distribution were calculated.