Assessment of the technical condition of the electrical networks of the branch of PJSC ROSSETI – Orenburgenergo

A study was conducted on the peculiarities of electric energy transport in the power supply systems of the PJSC “Rosseti Volga” – “Orenburgenergo” branch for the period 2020 – 2023. The structure of the company is described, the characteristics of the main elements of the studied electric networks are provided, and an assessment of the balance of electric energy transmission in and out of the company's networks is presented. Based on information published in the open press, an analytical assessment of the accident rate in the company's electrical networks was carried out on a monthly basis for each year of the study period. The influence of seasonal factors on the number of emergencies during the study period is examined. The consequences of emergency shutdowns, in terms of the amount of electrical energy undersupplied to consumers, are evaluated. Based on the proposed classification, an analysis of the failure intensity was performed, and the percentage of failures of various intensities was established. Based on data for the first half of 2020 and 2023, a detailed analysis of the main causes of damage to elements of the electrical networks was carried out. The percentage ratio of the number of failures attributed to the most common causes to the total number of outages during the study period was established. The data obtained on the causes of emergency outages were compared with similar indicators in the electrical networks of other branches of PJSC Rosseti Volga. General scientific methods, as well as numerical analysis methods, were used in conducting the study. Visualization of the results of the analysis is presented using the technical capabilities of the MATLAB graphics editor. The results of this research may be of interest to the management of electric grid companies, as well as to researchers and engineers engaged in studies related to the reliability of power supply during the transmission of electric energy via overhead power lines.