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Подобные документы
- 1. Analysis of schemes of a current limiting unit in automatic control systems for dc electric drives
The most suitable electric drive for these mechanisms is considered to be a direct current electric drive with thyristor automatic control. Frequency control of asynchronous electric drives finds less application due to the complexity of control.
??????, добавлен 14.02.2025 Methods of optimization and control of asynchronous electric drives of pumping machine. Application of asynchronous electric drives in industry due to their efficiency, reliability and control flexibility. Vector speed control and pulse-width modulation.
??????, добавлен 10.12.2024Analysis of requirements for electric-drive of mechanism of pulsed wire feed, and the benefits of using a special Brushless Direct Current electric-drive. Design of half-bridge circuit to regulate the strength of the current phase of the stator windings.
??????, добавлен 22.12.2016The control station is designed for the control and smooth adjustment of the rotation frequency of the shaft of the alternating current electric motor depending on the operating characteristics of the technological equipment of the rod depth pump units.
??????, добавлен 10.12.2024Comparative analysis of the effect of chemical compounds on the process of forming an electric arc and the conditions for its combustion.Metal transfer in the interelectrode gap under experimental conditions. Specific power of electric arc discharge.
??????, добавлен 29.09.2016Formulation of the problem of calculating the scalar potential of the electric field in the axisymmetric disk, the material which has anisotropic permittivity. The method of successive approximations, a description of the potential of the electric field.
??????, добавлен 30.08.2016Evaluation of the effectiveness of electronic test during verification of the direction and power of electric switches connecting or disconnecting the circuit when certain conditions are met. The study of the performance of Electromechanical relays.
??????, добавлен 14.09.2016Deployment of two-arm robots in different plants. Designing of an educational workplace for assembly, equipped with a two-arm robot. Using of Schunk electric grippers to adjust the range of movement and clamping force. Design a robotic workplace.
??????, добавлен 28.08.2020????? ?????????????? ??????? ??????? ?????? ??? ??????????? ????????? ?? ??????????? General Electric Power Systems, ??????????????? ??? ?????? ?? ????, ?????????? ? ????? ??? ?????????? ??????-???????????? ?? ???? ??????? ???????????? ????? ???.
??????, добавлен 28.05.2018The mechanisms used in industrial enterprises, crane mechanisms are one of the most common. This overhead cranes, which are the main types of crane mechanisms. For the optimal choice of electric drive, the basic requirements were taken into account
??????, добавлен 14.02.2025Rheology of high-viscosity marine fuel, temperature conditions of fuel preparation in ship power plant. The relationship between objects, environment and fuel quality of the fuel spray. Influence of variable electric fields for high-viscosity marine fuel.
??????, добавлен 28.09.2016Analysis of the problems that may arise in the asynchronous motor, issues related to diagnostics and repair work. Measurement of insulation resistance of windings of electric motors. Features of the conduct of maintenance that prevents excessive wear.
??????, добавлен 24.02.2025The production of electricity, losses during its distribution are considered as an important issue. Currently, loss control and electricity metering. Electricity measurement, detection and elimination of losses affect energy-saving technologies.
??????, добавлен 14.02.2025Investigation of the surface layer structure at high resolution. Study of surface morphology of treated detail. The use of electric-surface alloying components operating under conditions of friction and abrasionerosion wear and their restoration.
??????, добавлен 22.03.2016The electric drive of Crane mechanisms. The powered motor speed control via frequency converter and process control via programmable logic controller. Cranes are an important part of many industries and construction sites used for lifting heavy loads.
??????, добавлен 14.02.2025Research of influence of the electric discharge machining on change the properties of water. The formation of free radicals and hydrogen peroxide under the influence of cavitation is established, which leads to an increase in the whiteness of the wool.
??????, добавлен 21.12.2016?????????? ??????? ??????????????? ?????????? ? ??????????? ?????????????? ??????????? ? ?????????????? ??????????? ?????????? ?????????-??????????????? ?????????? ?????-??????????????? ????????? ?? ???? ???????????? ???????????? Schneider Electric.
??????, добавлен 30.07.2016???????? ?????? ???????? ????????????? ???????. ????????????? ?????????? ???????????-??????????? ????. ??????????????? ?????????? ? ??????????? ????????? ????????. ???????? ?????????? ? ???????? ???????? ???????????????? Rational, ??? ????????????.
???????? ??????, добавлен 26.04.2013The article discusses one of the promising directions of development of the electric power industry, associated with the use of controlled AC power lines using FACTS devices, in particular, the advantages of static thyristor compensators are considered.
??????, добавлен 10.12.2024Aspects of the use of different types of alternative fuels that will ensure economic stability and reduce the harmful effects on the environment. Use in alternative fuel vehicles and advanced technology vehicles. Using batteries and electric motors.
??????, добавлен 03.09.2024Demand for vehicles with a zero carbon footprint. Understanding the predictors of human behavior regarding the potential adoption or rejection of a technology. A comprehensive consideration of the possibilities of switching to low-emission vehicles.
??????, добавлен 20.07.2024Scientific justification for automated control method of optimal charge of pebble mill operating in series with a magnetic separator in the second stage of crushing in magnetic separating plants that process on iron ores with varying physical properties.
??????, добавлен 23.03.2016The base of constructing computer model of the analysis of complex physical-chemical phenomena in the process ORIEN in continuous arc furnace is as the main aggregate of energy-metallurgical complex. A mathematical model of physical-chemical processes.
??????, добавлен 02.11.2018