Scientific Journal of KubSAU

Both domestic and foreign experience have noted that the introduction of diagnostic tools was one of the most important factors in increasing the economic efficiency of the use of equipment in industry. The purpose of diagnostics is detection and prevention of failures and failures, maintenance of operational parameters within the specified limits, forecasting of the state for the purpose of full use of the resource. Today, more than ever, the assessment of the current state of the electric power is particularly acute. With one regulatory method of testing electric motors, it was necessary to make a sufficiently in-depth analysis of technical documentation for testing or diagnosis of new modern tests or diagnostics. The relevance of the transition to non-destructive methods of motor testing is increased in order to increase their service life. At present, there is a need to introduce more gentle methods of testing electric bodies, since the standardized test method has a negative impact on the condition of electric motors as a whole and on the integrity of the structure. In order to ensure the necessary level of reliability of electrical equipment at enterprises, it is necessary to use modern testing methods and diagnostic systems

We have developed a mathematical model of thermodynamic processes at oscillatory movement of liquids in porous environment with consideration of heat interaction of an oil layer with surrounding breeds and phase transitions caused by dissolution of paraffin’s dissolution. We have received analytical dependences of temperatures on time, distances to well and depth, that proves an opportunity to increase of oilrecavery when influenced by periodic fields of pressure. We have suggested a bartering effect to increase the temperature in zones far from the well formation. The mathematical model is based on the equation of heat balance, taking into account the contribution of phase transitions due to paraffinization in the case when the motion of the mixture takes place in a homogeneous isotropic porous medium with constant porosity and constant density. In the work we have developed a theory of bartering effect upon oscillatory movement of fluids in porous media considering thermal interaction between the oil reservoir and surrounding rocks and phase transitions due to the dissolution of paraffins. Comparison of theoretical and experimental data has confirmed the possibility of using the first approximation for the calculation of real thermodynamic processes in the filtration-wave fields. The developed process model allows the calculation of the temperature field in the practical conditions

The management of the process of implementation of projects at the refinery should be carried out comprehensively. To improve the diagnostic system of insulation of the stator windings of electric motors with a voltage above 1 kilovolt, it is necessary to involve specialists of all sub-divisions. This will allow a comprehensive approach to the problem of reducing the intensity of labor, and, consequently, to reduce the norms of time for performing operations provided for by the technological process. It is proposed to create a project team consisting of the following specialists: General Director, chief designer, chief electrician, lead engineer for adjustment and testing, Deputy Director for production, head of the Department of labor and wages, chief economist. In addition, the design should involve the heads of shops and sites, directly managing and organizing processes in the workplace. Domestic and foreign experience shows that the introduction of diagnostic tools is one of the most important factors in increasing the economic efficiency of the use of equipment in the industry. Purpose of diagnostics is identification and prevention of failures and malfunctions, maintenance of operational indicators within the established limits, forecasting of a condition for the purpose of full use of a resource