July 11, 2017 specialists of JSC “NPO VEI Elektroizolyatsiya” took part in the III All-Russian Conference “Technical and Economic Aspects of the Development of 20 kV Electric Grids”, held in Moscow. The event was organized by the scientific and technical branch magazine “ELECTROENERGY. Transmission and Distribution” under the guidance of the editor-in-chief Ekaterina Guseva with the support of the Moscow electric grid company JSC “OEK”.
Representatives of the Ministry of Energy of the Russian Federation, electric grid companies, including PJSC “MOESK”, PJSC “IDGC of Center”, PJSC “Lenenergo”, PJSC “IDGC of the North-West”, JSC “IDGC of Urals”, JSC “Grid Company” , JSC “YURESK”, territorial network organizations, engineering companies, developers and suppliers of power equipment, scientific institutions, educational institutions. Every year, not only the number of participants of the traditional conference that has already become traditional has grown, which aroused great interest among the specialists of the electric grid complex, but geography is also expanding – representatives of foreign companies with 20 kV operational experience were present for the first time.
The conference moderator – the leading expert of the magazine “ELECTROENERGY. Transmission and Distribution” Sergey Schumacher greeted the conference participants. He noted that “the majority of developed countries made the transition to 20 kV voltage grid in the second half of the 20th century, and it caused the reducement of losses in the transmission of electricity, provided a higher level of reliability of power supply to consumers and greater capacity of distribution networks”, thereby emphasizing the relevance and the need to solve this problem in Russia. Based on the results of the first two meetings, the strategic directions for the development of the 20 kV network were identified, the need to develop target models for increasing the grid voltage was determined, the solutions already implemented were evaluated, the advantages and risks of operating the networks of this voltage class were analyzed, the experience of JSC “OEK, PJSC “MOESK” in this issue was reviewed while transferring the power grid by 20 kV due to the active growth of the load density that has reached the parameters of the largest megacities of the world, including because of the development of the territory of New Moscow. The conference of this year, in addition to discussing the principles of constructing 20 kV electrical networks, including the implementation of the concept of construction of smart grids and the prospects for their use as an infrastructure base for the introduction of smart city technologies, for the most part concerned technical and economic aspects of the development of 20kV networks, calculations of power losses in existing distribution networks 6/10/20 kV were considered, as well as the costs of their construction and operation.
The great concern in the theme of the development of 20 kV electric grids is not accidental for the company – JSC “NPO VEI Elektroizolyatsiya” conducts its own research and development work in the field of linear and substation high-voltage equipment, so the attention of specialists was also attracted by discussion of new technologies and developments that can be successful applied in 20-kilovolt networks, including in the field of automated control systems for the distribution network, gas-free switchgear, analysis of the new developments for compact cable lines with a voltage of 20 kV, such as a cable with sectoral conductors.
Participation in such events allows the specialists of JSC “NPO VEI Elektroizolyatsiya” not only to keep abreast of key trends in the industry, but also to contribute to the development of the domestic electric power industry, in view of the fact that, following the results of the event, it is planned to form the Conference Decision and send it to the appropriate authorities for making amendments in regulations, industry standards and regulations.