DEVELOPMENT OF A METHODOLOGY FOR ASSESSING ELECTRICITY LOSSES IN INDUSTRIAL POWER SUPPLY NETWORKS

At present, the current pace of development of industrial technologies leads to an increase in electricity consumption. At the same time, there is a need to improve the quality of accounting for power losses in low-voltage networks of industrial power supply systems. The issues of effective implementation of energy saving measures in the electric power industry and industry of the Russian Federation, in the presence of many economic sanctions from unfriendly states, become especially relevant. The proposed work presents the study of the main factors that determining the value of equivalent circuit resistance of radial and main sections of the shop network. The purpose of the work is to determine the equivalent resistance of the shop network, taking into account the influence of the main parameters of electrical equipment, such as line loading, ambient temperature, conductor heating temperature and resistance of lowvoltage switching equipment. The object of the study is a section of the shop network of the power supply system of an industrial enterprise. Conclusions. The main factors determining the equivalent resistance of the circuit, such as resistances of low-voltage switching devices, conductor heating temperature, ambient temperature and equipment loading factor are identified. The errors from failure to take into account the main parameters of the equipment in calculating the value of equivalent resistance of the radial, main sections and mixed network сircuit are determined.

industrial networks, power losses, contact resistance, conductor heating, load factor, network impedance, electric power system.

1. Gracheva, E. I., Abdullazyanov, R. E., Alimova, A. N. 2018. Analysis and methods for calculating active power and electricity losses in low-voltage shop networks. Kazan state power engineering university bulletin. №4 (40). pp. 53-65. (In Russ.).

2. Armas J., Ivanov A. Determination of the total cost of active power losses and methods to reduce power losses in low-voltage distribution networks // IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON), Riga, Latvia, 2019, P. 1-6.

3. Atanasov V., Stoilov D. Influence of the Asymmetrical Load on Losses in Low Voltag Network // V International Conference on High Technology for Sustainable Development (HiTech), Sofia, Bulgaria, 2022, P. 1-5.

4. Chen L., Yaxin L., Kai W., Dongping Z., Hu L. Research on Graph Clustering Based Line Loss Prediction in Low-Voltage Distribution Network // 2nd Asia Power and Electrical Technology Conference (APET), Shanghai, China, 2023, P. 540-545.

5. Grigoras G., Gavrilas M. An Improved Approach for Energy Losses Calculation in Low Voltage Distribution Networks based on the Smart Meter Data // International Conference and Exposition on Electrical And Power Engineering (EPE), Iasi, Romania, 2018, P. 0749-0754.

2026-03-25