Quantitative Assessment of Reliability Indicators of Electrical Circuits of 10 Kv Distribution Networks

One of the most important tasks of the electric power industry is to ensure uninterrupted power supply and reliable operation of all its elements, timely elimination of technological failures, development and implementation of measures for their prevention and elimination. When managing power grid assets, it is necessary to simultaneously process and analyze a lot of different data. Besides, when considering tasks on distribution networks development and ensuring their reliability, it is necessary to take into account economic and ecological aspects. Thus, modern techniques and tools are needed to help manage electrical grids. One of the most important tools in planning is distribution network reliability analysis methods, which can also be applied to assess management effectiveness. This article examines the selection of the optimal scheme of power supply of electrical networks using the method of structural analysis of reliability, on the example of the method of "block diagrams", which represents the object in the form of a set of a certain way connected (in terms of reliability) elements As an example of selection of the optimal scheme of power supply considered distribution network scheme on the example of two looped feeders, each powered from different sections of voltage 10 kV. As a result, it is clearly shown that when changing the scheme of electric network - installation of ringing and sectioning reclosers, there is a significant increase in the reliability of the electric network.