Economic load intervals for selecting 10 kV cable cross-sections for agricultural consumers

Abstract

District electric networks for agricultural purposes are characterized by a constant increase in loads. In these conditions, it is important to choose the correct parameters of power lines and, first of all, the cross-sections of overhead lines (overhead lines) and cable lines. There are technical possibilities to increase the capacity of overhead power lines, which can be carried out in the following ways: voltage regulation; reactive power compensation; replacement of existing wires with wires of a larger cross-section; load unbundling; transfer of the network to an increased voltage. Increasing the capacity of cable transmission lines by all of these methods is not possible due to their design features. Thus, due to the difficulties of increasing the capacity of cable lines and dynamically developing networks, the problem of choosing the optimal cable cross-section for lines with an ever-increasing load is becoming more acute. Currently, agricultural distribution electric networks have a constant increase in load. In these conditions, the correct choice of the parameters of cable lines and the residential cable line is of great importance. Due to the complexity of increasing the throughput of cable lines and dynamic networks, problems arise with the choice of optimal paths for wires and residential cables for agricultural lines.

Minimization of energy production management consumptions

“…Comparing the right and left sides of expressions (14,15) with respect to probability factors, we can conclude that they are affinely similar, i.e.…”

“…In this case, the definition of the goal has not been formulated in relation to this ferry, therefore, from the standpoint of ES control, the parameter value can be any. It is known that the probability of any value of the parameter is always equal to, , regulation on this parameter should not be performed [15][16][17].…”

Loading mode of a ferromagnetic current stabilizer

“…This dependence qualitatively describes the characteristic of simultaneous magnetization in the working section of the magnetic amplifier in the stabilization mode and gives rather simple results for analyzing the load mode of the device. The value of the coefficient depends on the magnitude of the bias current, and it can be determined by the method of selected points or by the method of least squares [15][16][17][18][19][20][21][22].…”

Study of optimality of existing 10 kV overhead wire standard section scale

“…In this case, instead of 8 standard sections, it turns out to be possible to use only three sections. In this case, after rounding off the scale of sections, they take the form: 10, 35, 120 mm 2 ; 16, 50, 150 mm 2 ; 25, 70, 150 mm 2 [40][41][42][43][44][45][46][47].…”