Abstract :
We carry out a self-consistent analysis of the excitation of current on an overhead cable by a vertical current source. The ground plane is assumed to be a perfect conductor, but otherwise the solution obtained is quite general. It is shown, for the cable model adopted, two dominant modes are excited; one is the expected transmission line mode between the cable and the ground plane and the other is the coaxial mode between the center conductor and sheath. When generalized, results for the traveling wave source can simulate lightning, but this task is left for the future
Keywords :
cable sheathing; coaxial cables; electric current; electromagnetic induction; equivalent circuits; overhead line conductors; telecommunication transmission lines; transmission line theory; cable model; center conductor; coaxial mode; dominant modes; equivalent circuit; ground plane; induced current; lightning simulation; overhead cable; perfect conductor; sheath; transmission line mode; traveling wave source; upward travelling current wave excitation; vertical current source; Cable shielding; Coaxial cables; Conductors; Fourier transforms; Frequency; Geometry; Lightning; Power cables; Time factors; Transmission lines;
