Determination of the technical condition of electrical equipment in power supply systems

Abstract

This article describes the methods and means for determining the technical condition of electrical equipment in power supply systems, particularly in transformer substations. There are many ways to determine the technical condition of electrical equipment. However, their implementation requires complex and additional equipment and devices. In addition, these tests must be carried out when the power supply system is off. This will lead to a decrease in the quality of electrical energy. Determination of the technical condition of electrical equipment using thermal imagers is performed under the voltage and in operating modes, the measurement process does not affect the parameters of the power supply system. The results of research in energy enterprises of the Syrdarya region are presented.

Dry mass accumulation of cotton under drip and furrow irrigation in Uzbekistan

“…Invasion capacity was decided some time recently sowing and at the conclusion of season utilizing standard twofold ring metallic infiltrometers with an external ring diameter of 0.4 m and internal ring breadth of 0.2 m. Both rings were buried within the soil to a profundity of 0.15 m and nonstop six hours' perceptions were conducted. Each season, soil bulk thickness (BD, Mg m-3) was measured in each 10 cm from the surface to 100 cm soil profundity some time recently sowing and at the conclusion of season utilizing the center method [11,12,13].…”

Drip irrigation and new fertilizer application technology for cotton variety C-8286 in the condition of global climate change

“…Nearly 90 % precipitation happens from harvest time till spring. Inquire about strategy were taken after by "Methods of field experiments" distributed by Uzbekistan Cotton Investigate Organized [10]. The test format was a total randomized piece plan with three replications.…”

“…According to research conducted by Kevin Bronson in the irrigated lands of Texas and Arizona in the southwestern regions of the United States, Internal Nitrogen Use Efficiency (iNUE) is the most important factor in increasing fiber yield. It was determined that the average nitrogen application was 91 and 133 kg per hectare, the fiber yield was 1535 and 1790 kg, and the average nitrogen uptake was 128 and 177 kg ha -1 [7][8][9][10][11][12][13][14][15].…”

“…In the studies carried out in the USA, it was found that when phosphorous fertilizers dissolved in water were used frequently and constantly, i.e., every 2 days for 4 hours, the efficiency of phosphorus use was higher than that of simple drip irrigation. It was found that the amount of phosphorus in plant parts was up to 25% [7][8][9][10].…”

Study on energy balance calculation of the electric network

“…Also, the energy component of product pricing and the relationship between the scope of research and the tasks set were determined. The analysis of the energy balance of the territorial enterprises of electrical networks of the Surkhandarya region consists in determining the levels of use of electrical energy and the qualitative and quantitative activities of energy enterprises and is carried out in the following areas [14,15]: the influx of electrical energy and the system for the use of electrical energy and the study of the system of transmission and distribution of electrical energy in enterprises; determination of estimated indicators of the efficiency of the use of electrical energy in the energy facilities of enterprises; evaluate the development and current state of the energy facilities of enterprises according to generalized indicators; obtaining the necessary material for setting the tasks of optimizing the electric power balance and its solution optimization and management of operating modes of electric networks of the region. To determine the problem in the general case, mathematical methods and techniques are used that describe complex systems in a more simplified form.…”