Power supply scheme of a residential neighborhood in Volgograd

Introduction

Megacities are considered to be significant buyers of electricity, as they are home to a significant proportion of residents, as well as a huge number of industrial enterprises.

The distribution network with a voltage of 6–10 kV and the public network with a voltage of 0.38 kV are used to supply power to the majority of consumers.

Cities are characterized by an increase in electricity consumption, which requires the systematic development of power grids. The growth of electricity consumption is associated not only with an increase in the number of residents and the development of industry, but also with the continuous consumption of electricity in all spheres of life of the population. The consumption of electricity for household needs and utilities in cities is growing.

Up to 45% of the energy generated is currently transmitted through the city's distribution networks. Thus, networks become an independent field of energy, and the problem of their rational construction acquires a certain national economic significance.

Urban power grids with a voltage of 6-10 kV are characterized by the fact that there are consumers of all three categories in terms of reliability of power supply in the residential area. Naturally, this requires proper network mapping.

Relevance of the study: high density of electrical networks leads to increased environmental requirements, as well as the need to build new substation lines.

Significant costs for the design of a power supply system are an urgent problem in terms of the technical and economic component. This is an urgent task of the study.

The main purpose of this final qualification work is to calculate the power supply of a residential district of Volgograd for a voltage of 110 kV. At the moment, in large cities, dead-end substations are being switched from 6 kV to 10 kV. 

The task of this thesis was to calculate and determine the cross-sections and grades of cables, as well as to select equipment and devices suitable for TP-10/0.4 and the cross-section of wires on OHL-0.4 for lighting a residential area. 

The object of the study is the design of the power supply system of a residential district of Volgograd with a voltage of 110 kV.

The subject of the research is the development of a project to ensure power supply to a residential area in Volgograd.

The topic of this final qualification work is "Design of a power supply system for a residential microdistrict of the city of Volgograd with a voltage of 110 kV"