Scientific Journal of KubSAU

The article presents the analysis of the design of an electro activator on the basis of the equivalent circuit, the dependence of the resistance in the cells at differ-ent performance. It also provides a comparison of experimental and theoretical values of resistance

Based on this analysis, it was found that it was necessary to develop an electro-activator with adjustable parameters. Analysis of the literature showed that there are no analytical expressions relating the degree of activation solutions, conductivity, temperature and geometric parameters of an electro-activator. The article presents a block diagram of the system "Electro-activator - working solution - weeds", a mathematical model of the subsystem "Electro-activator" allows to describe the parameters of the solution at the outlet of the electro-activator and its mode of operation. An expression is derived which allows to determine the critical mode of installation and adjustment range of current management. When exceeding the rated range of the control the main energy will focus on the process of aerogenesis. We have implemented the coefficient of aerogenesis, which has a significant impact on the temperature of the solution in the chamber and an electrically. This factor must be taken into account as well as the approach mode to the critical or exceeded. The calculation for the resulting mathematical model makes it possible to design an electro-activator for a company which has different water sources and apply different plant protection products. Also, in the future, the result of the research will allow developing engineering techniques for calculations

The article presents an engineering method for defining electro-activator parameters. We have developed an engineering method for calculating an electro-activator with improved performance that can reduce the complexity of the design calculations and include a critical mode of the electro-activator at which the process leads to passivation. We have proposed an automated management scheme based on electro-activator functional and electrical schematics. One of the benefits of the resulting model of calculations of an electro-activator is to identify a possibility of automating the process of managing and stable operation. The current in the electro-activator can be adjusted depending on performance. Automatic maintenance of performance and capacity control for the benefit of the cameras is possible, giving an automatic valve with an analog controller. When the temperature rises above or current exceeds the desired value, we can face signaling and a complete shutdown of the installation. The use of temperature sensors, pH, conductivity and flow can be implemented, as well as centralized information collection and development of the control algorithm. Monitoring and maintenance of an electro-activator can be fully automated with the equipment of industrial automation. Also, on the basis of the proposed engineering method for calculating, it is possible to develop a software product. That will allow designing computer simulation when planning an electro-activator

The feasibility study is required in determining the effectiveness of the implementation of electrotechnical products. The main aim is to determine the magnitude of the economic effects of using key and related results in agriculture. The article presents a feasibility study of production and implementation electroactivator device in the production of 5 units monthly, 60 units per year. It is the device cost calculation based on investment, energy costs and wages. Capital investment in new plant is the cost of materials and installation. The magnitude of the value of individual elements of the unit is determined by the price lists. Determining the cost-effectiveness and technical feasibility in the production when introducing electrified units involves additional investment and operating costs, this is reflected in the cost of production. The comparison was made for the device with a new electroactivator developed in KubSAU and using chemical means of Lakmus. Calculations of economic efficiency of investments for the farm which has 225 hectares of arable land have shown that basic income will be obtained by reducing operating costs. Net present value was determined for different levels of the bank rate and inflation

The article shows the results of laboratory and field experimental research of the study of hydroseeding of different vegetables varieties with tap water and elec-troactivated water. It also shows the experimental setup of hydroseeding and electroactivator machines developed by the authors

The article deals with the reliability of the functioning of the equipment of the power supply substation, and the determination of the probability of uninterrupted supply of electricity to consumers. The following are presented: models of failures of separators, models of short-circuit failures, models of failures of disconnectors. Two statistical series for sudden and gradual failures are singled out. The reliability theory is shown as the main distribution of fail-safe time for sudden failures. The conclusions on the presented models are made and the suggestions on introduction into production are given. According to the presented models, it is possible to judge the reliability of the station's operation, which is necessary for implementing measures to improve the reliability of electricity supply in network companies