Analytical assessment of electric energy transport via electric grids of the branch of PJSC ROSSETI Volga – Mordovenergo

A study has been conducted on the peculiarities of electric energy transport in the power supply systems of Mordovenergo for the period 2018–2023. 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 transmission of electric energy in and out of the company's networks is presented. Based on information published in the open press, an analytical assessment of the failure rate in the company's electrical networks was carried out on a monthly basis for each year of the study period. An assessment has been made of the consequences of emergency shutdowns in terms of the amount of electrical energy undersupplied to consumers. Based on the proposed classification, an analysis of the failure intensity was performed, and the percentage of failures of various intensities was determined. Notably, slightly more than 1% of the total number of high-intensity failures accounts for up to 28% of the total amount of electrical energy undersupplied to consumers. A detailed analysis of the main causes of damage to electrical network elements has been performed. The percentage ratio of the number of failures attributed to the most common causes relative to the total number of outages during the study period was established. It was found that more than 72% of failures occurred due to non-compliance with maintenance regulations and delays in detecting and addressing defects. The obtained indicators were compared with similar indicators in the electrical networks of other branches of PJSC ROSSETI Volga. The research employed general scientific methods, as well as numerical analysis techniques. Visualization of the obtained analysis results is presented using the 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 researchers and engineers engaged in studies related to reliability of power supply.