In order to improve the energy characteristics for low-power ozone generators, it is proposed to use a continuous discharge burning mode. It is due to a significant phase shift between the currents and voltages on the ozone generator. Conditions for conducting the continuous discharge mode were identified.

The article raises the issue of climate warming without loss of harvesting dry short-stalked crops will increase, and requires an urgent technological and technical solution. Research aimed at the development of a device installed in an inclined chamber, providing a reduction in grain losses during harvesting of dry short-stalked grain mass, is relevant and of great economic importance. The aim of the study was to increase the efficiency of harvesting dry short-stalked crops due to the uniform distribution of threshed grain mass supplied to the combine harvester. And the scientific hypothesis of the study was to increase the efficiency of a single-drum combine harvester by threshing dry short-stalked breads, by ensuring a uniform layer of grain mass entering the local government. The results showed that the threshing of grain increases due to the uniform distribution of mass depending on the length of the discrete part of the corrugation. The results of the experiment are obtained.

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For the optimal development of electric networks, not only the optimal choice of the network element parameter from the existing standard scale (parametric series) of sizes is important, but also the optimization of standard scales of equipment sizes or checking their optimality. The method of economic intervals explores the existing parametric series of standard cross-sections of 10 kV cable cores and establishes that the existing series does not satisfy the conditions for optimizing the use of cable lines in rural areas. Since cable lines have not yet found wide distribution in rural areas, there are conditions not only to verify the optimality of the existing scale of cable conductor cross-sections but also to establish an optimal scale of 10 kV cable conductor cross-sections, intended for the construction of cable power transmission lines in rural areas (if the existing scale does not meet optimality conditions). For rural distribution electric networks, the initial and final sections in a parametric series (25 and 120 mm2) are determined and the optimal for rural areas parametric series of cable cross-sections of 10 kV (25; 50; 120 mm2) is recommended.

This article is addressed to the inductivity of the feeder transformer influence on of the plate-type ozone generator operating modes. The equation characterises the ozone generator interconnected operation with the transformer, in discharge and non-discharge modes is represented. Use of the near-resonant mode of operation is proposed with a view to reach maximum output capacity. With that end in view, it is proposed to use the transformer with higher inductance. Oscillograph charts of two modes of operation of the ozone generator are analysed. Current waveform factors are determined by the harmonic analysis method. Experiments proved that current waveform factor increase in value for the account of continuous discharge is conductive to increase of ozone output by 25-30 % and power loss reduction by 10-15 %.