Technical solutions for the transmission of electricity at high voltage in arctic conditions

The article considers the main solutions to the problems that arise during the transmission of high voltage electricity in the Far North. The relevance of this topic is associated with the high strategic importance of the Arctic zone for the Russian Federation and ensuring national security for the period up to 2035. Within the framework of this strategy, it is necessary to develop and implement engineering and technical solutions for the transmission of electric power that ensure the stable functioning of the infrastructure in extreme climatic conditions. An analysis of existing solutions for the transmission of electricity in the Arctic zone was carried out. For overhead and cable power lines, their design features, their operating conditions, as well as the features of laying at extremely low temperatures are described. Within the framework of this work, the prerequisites for the use of gas-insulated lines, as well as conductors with cast insulation, are put forward. The main advantages and disadvantages of using the considered equipment are determined. Further exploration and development of the Arctic zone will dictate more stringent requirements for the equipment used. So, in order to reduce dielectric losses during the transmission of electricity, the authors propose the use of a promising polymer-gas conductor, which can be operated both in air and in water. Numerical analysis of reduction of dielectric losses and values of electric field strength in a polymer-gas conductor in comparison with existing solutions has been carried out.