ESTIMATION OF ELECTRIC POWER LOSSES IN THE INTRAFACTORY ELECTRIC NETWORKS

Ilhomjon Qodirov

Authors

 

Gracheva E.I. – doctor of Technical Sciences, Professor, Department of Power Supply of Industrial Enterprises (EPP), Kazan State Power Engineering University, Kazan, Republic of Tatarstan, Russia, Professor, Department of Power Supply (ES) ), Southwestern State University, Kursk, Russia, grachieva.i@bk.ru

Gorlov A.N. – candidate of Technical Sciences, Associate Professor, Head of the Department of Power Supply (ES), South-West State University, Kursk, Russia, kafedra.es@yandex.ru

Shakurova Z.M. – candidate of Pedagogical Sciences, Associate Professor, Department of Power Supply of Industrial Enterprises (EPP), Kazan State Power Engineering University, Kazan, Republic of Tatarstan, Russia, shzumeyra@mail.ru

 

Annotation

 

 The article analyzes the methods of calculating electric power losses in intra-factory electric networks. The studies have shown that when assessing electricity losses, it is necessary to take into account the resistance of contact systems of low-voltage switching devices, the shape of the load curve and reliable determination of the time of maximum losses. The article calculates the electric power losses in the lines of the low-voltage workshop circuit by the most common methods and calculates the errors of each method, identifying the causes of errors. Moreover, the graphic integration method is adopted as the reference calculation method. As a result of studies, it was found that the method of calculating the energy loss 2t has the smallest error. The analysis of methods for calculating electricity losses in electric networks carried out in the work showed that the expediency of choosing a method for calculating losses should be due to the correspondence of methodological and information errors.

 

Key words

 

industrial power supply networks, electric power losses, calculation errors, time of losses, root-mean-square loads

 

References

 

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Publication date

2023-10-26