Technical and economic analysis of parameters of city distribution electric network up to 1000 V

Abstract

The article shows the sequence of development of mathematical expressions of the technical and economic indicators of networks whose voltage is up to 1000 V. In the development of these expressions, methods such as the smallest squares, the criterion analysis were used. From the resulting expressions, it is possible to see which sizes are significantly dependent or dependent on the costs incurred for this network processing.

Analysis of reactive power consumption “Denav oil extraction plant”

“…To analyze the dynamics of changes in electricity consumption, a summary table was prepared based on the report provided by the department of the chief power engineer [1,[35][36][37][38].…”

Determination of the service area and location of transformer substations in the city power supply system

“…Determining the geometric area in the optimal position has a great influence on the development of urban planning and city power supply. By determining the limit optimal area of the transformer substation, it is possible to achieve a reduction in the length of low voltage electrical networks, as well as a reduction in the cost of waste electricity [6][7][8][9][10].…”

“…Figures 2, 3 describe the template in the sample case for the service area of various rated voltage transformer substations to be placed in the city area, as well as the designable ideal view of the service. Through these presented images, a vision is generated by the service area [1,8,13]. Between the basic geometrical sizes of the models shown in Figs.…”

“…Considering ( 7) and (8)(9)(10)(11), the following relationships are valid between the basic sizes of the geometrical model-template of TS service area, its load density and the technical parameters of the existing or future TSs [1,[9][10]:…”

“…The consumers allocated for the transformer substation as well as their consumption capacities, location coordinates are shown in Table 3. Length of lines up to 1000 V: -Within TS1 387 m (7,10,11,13,14,15,16,17,18,19,20); -Within TS2 313 m (1,2,3,4,5,6,8,9,12); Loading each line 135, 125, 145 kVА (ТS1), 150, 120, 105 кВА (ТS2); Distance between TS 167 m.…”