Assessment of the operability and causes of accidents of electric grid facilities in the north of the European part of Russia

In this paper, the problems of the influence of climatic factors on the accident rate in the distribution networks of Russia are investigated. The review of existing research on this topic in Russia and abroad is carried out. Based on the annual reports of the company’s branches, a brief analysis of the impact of the key factors on accidents in various parts of the service of PJSC ROSSETI is presented. Based on the annual summary information on technological failures in the service area of PJSC Rosseti North-West and PJSC Rosseti Lenenergo and the archives of meteorological observations of Roshydromet, an analysis of the climatic causes of accidents in the Russian electric grid complex for the period 2018–2023 was carried out, the dependence between the observed wind speeds and the probability of disconnection at the facilities of the electric grid complex was revealed, an analysis of data of weather observations over the last 50 years is presented. Based on the simulation data of CMIP5 models, a forecast of changes in wind conditions and accidents in electrical networks in the study area was made.