Power supply of the settlement

Contents

Contents

Introduction

1. Source Data

2. Calculation of electrical loads

3. Determination of allowable voltage losses in the 0.38 kV network

4. Selection of number and power of transformers

5. Determination of number and power of transformer substations (TC)

6. Layout of 0.38 kV networks

7. Electrical mains calculation 0.38 kV

8. Electrical calculation of 10 kV network

9. Determination of energy losses (in the 10 kV line from the power supply to the design settlement, designed TP and 10/0.4 kV and 0.38 kV lines)

10. Design of lines and PI

11. Calculation of short-circuit currents and selection of substation equipment

12. Protection of outgoing lines 0.38 kV

13. Overvoltage protection and grounding

Literature

Introduction

Currently, a large number of water supply plants, high-performance production units for drying and sorting grain, production lines of workshops and fodder preparation plants, large poultry farms, industrial-type complexes for fattening cattle, pigs, communal facilities, residential buildings and other enterprises are electrified in agricultural production. The agro-industrial complex annually consumes more than 14% of electricity, and according to the nomenclature of electrical equipment used, agriculture occupies one of the first places among the sectors of the national economy of the Republic of Belarus.

Today, all agricultural facilities use electricity, all residential buildings in rural settlements have an electric input. Overhead transmission lines cover all settlements. However, this does not mean that the work on the electrification of agriculture has ended - the electric load in agriculture is constantly increasing, there is a need to reconstruct, expand power lines, introduce the latest equipment to replace the outdated one.

Despite some positive results, the level of agricultural electrification achieved and the volume of electricity consumption does not meet modern requirements. The energy content of labor in agricultural production is much lower than in industry. Therefore, there are quite great prospects for the electrification of agriculture in the future. It is planned to increase the energy supply of agriculture, increase the volume of electricity consumption in agricultural production, as well as its supply to the communal needs of the rural population.

Thus, it can be concluded that the problems of electricity supply in agriculture are of great importance. The economic efficiency of the use of electricity in agricultural production depends to a large extent on a rational solution to these problems.