Method for assessing the reliability of a three-phase power transmission line high voltage in the Far North

The article considers the climatic features of the operation of three-phase high voltage power lines in the Far North of the East Siberian region of Russia. Taking into account the influence of weather conditions, a mathematical model has been developed for analyzing the reliability of a 220 kV power transmission line connecting the Kureyskaya HPP and the Ust-Khantayskaya HPP. On the basis of the synthesized model, a quantitative assessment of the reliability indicators of power transmission lines was carried out. The results of the analysis of the reliability of power transmission lines are presented in the form of graphical dependencies, numerically confirming the effect of ice on reliability.