Calculation of Electric Field in Any Point of the Earth for Determination of Electromagnetic Compatibility of Objects with High-Voltage Power

摘要

The paper presents a mathematical model of physical processes of high-voltage transmission lines and underground conductors electromagnetic compatibility. In this model, analytical expressions of the electromagnetic field along the underground communications are obtained by interpreting the solution of dipole field for lower half-space, the results of solutions interpretation for the dipole field vector potential are presented, dependence of the change in field characteristics on the removal and electrical conductivity of the soil, as well as a possibility of limiting the computation volumes for a given error. Investigation of the induced voltages and currents in the elements of underground wire communication can be performed, which is important for providing safety operation of relay protection, communication channels and automation, as well as for the safety of people, especially near substations.