Balametov A.
Azerbaijan Research and Design- Survey Institute of Energy
Isayeva T.
Azerbaijan State University of Oil and Industry
Salimova A.
Azerbaijan Research and Design- Survey Institute of Energy

Abstract
When corona wires, partial discharges and corona of insulators and fittings, sparking in the contacts of linear fittings, radio interference occurs. The harmful effects of a person’s stay in a strong electric field depend on the field strength E and on the duration of its exposure. Electromagnetic compatibility of technical means (EMC) is the ability of a technical means to function with a given quality in a given electromagnetic environment and not create unacceptable electromagnetic interference to other technical means. Corona discharge on power lines interferes with radio and television reception, as well as acoustic noise. Currently, there is no software for assessing the electromagnetic compatibility of overhead lines. Mathematical modeling of the influence of corona wires of overhead lines, electromagnetic interference, corona discharge, radio interference in wires is considered. Radio interference on overhead lines can occur both due to corona on wires, and due to partial discharges and corona on insulators, breakdown or overlap of defective insulators, corona on linear fittings and spacers of split-phase wires, as well as due to sparking in poor contacts of linear fittings, spacers wires and between insulators. The EMC software was developed to assess the environmental impact of high voltage AC transmission lines. On the example of a 500 kV overhead line results of simulation are represented.

Keywords: Overhead lines, corona losses, acoustic noise, radio interference, electromagnetic compatibility