Radiation from Fault Cables Embedded in a Dissipative Half-Space

• Main Authors: Li, Xianshan, Drissi, Khalil El Khamlichi, Fontaine, Jacques
• Format: Conference Proceeding
• Language: English
• DOI: 10.1109/ISEMC.2002.10792296

In this paper, the moment method is employed to solve the radiation and coupling problems of a dielectric insulated cable in the presence of a dissipative conducting half-space. The moment method impedance matrix is evaluated and modified considering the equivalent volume polarization currents to model the dielectric insulation la yer of the cable. This method is furthermore put to some practical uses. One practical case is the problem of the electromagnetic interference produced by power lines overhead under fault conditions caused by lightning; the second deals with the insulated wire overhead with faults in its insulator; and the third is the embedded cables also with faults in their insulation layer. This paper is a theoretical and numerical analysis for a practical project which is related to the evaluation of electromagnetic phenomena in the switchyard of high voltage substation and power plant.