Characterization of Spatial Electromagnetic Parameters and Propagation Properties of Overhead Transmission Lines Fault

In order to better utilize the information of magnetic field during transmission line faults and improve contact-free measuring and fault monitoring methods, this paper investigates the impact of fault current on the magnetic field characteristics of overhead transmission lines. The study is achieved through an analysis of simulation results, putting forward the identification of magnetic field distribution characteristics of the overhead transmission line under fault conditions. The study demonstrates that overhead transmission lines exhibit clear characteristics in their magnetic fields in different fault cases, utilizing a research method that combines numerical and finite element simulation. Additionally, the paper discusses the magnetic field traveling waves generated by fault currents, and provides some relevant insights. In the final, the simulation results prove spatial distribution, diapason characteristics and traveling waves of the magnetic field to be available to identify the occurrence and type of faults. This provides new research ideas and solutions for real-time monitoring of long-distance transmission lines, consequently useful for digitized energy internet construction.