Numerical simulation of losses and heating in the constructional elements of transformers of ferromagnetic steel
The application of the methods of calculation of surface and volume losses in the constructional elements of transformers of ferromagnetic steel. A samples definition of heating in the constructional elements of equipment with the single-phase autotype.
Подобные документы
The neutron irradiation facilities offered by the ET-RR-2 and the HPGe-detection system are used for elemental investigation of three samples of domestic fertilizers. A total of 31 elements have been identified as major and minor concentration values.
статья, добавлен 09.10.2013Results changes in the structure of materials at pulsed plasma processing on the accelerator. Changes in physico-mechanical properties because the structure and phase transformations in a material when the difference of parameters of the plasma exposure.
статья, добавлен 13.10.2016- 28. Simultaneous determine of Doppler shift and group delay time using amplitude modulated chirp-signal
Differential Doppler shift between rays as one of the main parameter of radio channel. The method of calculation of the transmitter radiate continuous amplitude-modulated continuous wave. Analysis of the spectrums of differential signal elements.
статья, добавлен 30.10.2016 The calculating of the elements of a picture of thermosphere circulation, direction of thermosphere wind over Kharkiv. The calculations of constituent part of vertical component of ionospheric plasma velocity caused by horizontal neutral winds were made.
статья, добавлен 30.10.2016We investigate comparison methods of different geometric configurations of adaptive antenna arrays for communications on purpose to estimate directions-of-arrival of several external signals. The investigated antenna configurations have four elements.
статья, добавлен 04.11.2018Nanocomposite multicomponent coating obtained by vacuum arc deposition method. Analysis of the of the structure of the coating, elemental distribution and composition of the impurity elements using the methods Rutherford backscattering, mass spectrometry.
статья, добавлен 30.07.2016The features of surface waves motion and the analysis of methods for finding the timing and patterns of change in motion R-waves along the free surface. The calculate time - frequency performance under different formulas and compared with each other.
статья, добавлен 27.07.2016Actual trends in development of power system protection and automation. Identification of circuit parameters of power network elements. The proof of applicability of power line parameters identification algorithm. Synchrophasor application tasks.
статья, добавлен 23.06.2013Analysis of samples based on carbon. Structural and electrical properties of grapheme-based samples for application of these samples in solar panels. Application in the modeling of hybrid energy systems and modeling of current-current characteristics.
статья, добавлен 15.09.2024The study of nonlinear dynamics of neurophysiological systems identify the presence of chaotic elements. Complex characteristic based on microsystem technology Geomath. Correlation method of measurement and statistical significance of the results.
статья, добавлен 29.07.2016The classical electromagnetic lag. Use of the darwin-lagrangian analysis. Calculation of the aharonov-bohm phase shift. Experimental tests for velocity changes. The test for electromagnetic lag in the quantum topological description of the phase shift.
статья, добавлен 11.09.2012The different surface energies. Grain boundary prewetting and premelting phase transitions. Energy, segregation, mobility and diffusivity in the systems Cu–Bi, Al–Ga, Al–Pb, Fe–Si–Zn. Grain boundary phase transitions and the properties of polycrystals.
статья, добавлен 28.10.2018A five-phase inverter control algorithm in the over-modulation zone, which provides a transition from a linear modulation zone to a ten-step phase voltage. The results of the simulation of basic modes of operation in the zone of higher output frequencies.
статья, добавлен 02.02.2019Problems of reducing dielectric strength of transformer oil. The technology of pumping oil through the adsorbent to remove excess moisture. Analysis of methods of drying the adsorbent by an electromagnetic field. Advantages and disadvantages of methods.
статья, добавлен 30.10.2016The study of surface electromagnetic waves propagating along а boundary line. Methods of achieving efficient excitation of surface plasmon polaritons. Properties of quasi-particles and photons interacting with elementary excitations of environment.
статья, добавлен 30.07.2016Numerical simulation of the excitation of a plasma wave-phase field by means of a generated laser pulse. Increase in the coefficient of transformation. The length of the shaped laser pulse. The maximum energy, to which electrons can be accelerated.
статья, добавлен 22.12.2016History of origin and development of the electrotechnical industry. Characteristics and distribution of transformers, their features and purpose. High voltage DC technology. Consequences of absence of electric energy storage in transmission systems.
контрольная работа, добавлен 20.02.2019Split-phase symmetrical motor drive on the base of two voltage source inverters, controlled by algorithms of synchronized pulse width modulation, has been investigated. Simulation results are presented for dual three-phase power conversion systems.
статья, добавлен 02.02.2019The review for different devices: Infrared sensor arrays for thermal imaging on active Si read-out chips, resonant cavity enhanced IR detectors, quantum well lasers on Si substrates and "wavelength transformers", structures operated in sub-threshold.
статья, добавлен 28.06.2013The overall frame and principal steps of complex numerical modelling of thermal processes in power boiler furnaces on pulverised coal with tangential disposition of the burners. The methodology for creation of three-dimensional models of boiler furnaces.
статья, добавлен 02.02.2019Semiconductor nanomaterials - very useful in various types of applications as electronic and optical properties. The features of ferromagnetism in copper oxide material without magnetic impurities due to defects created by the deficit of cations.
статья, добавлен 30.07.2016A mathematical model of the system of proactive management of the condition of the electrical equipment, which involves the selection and use of various methods of intellectual analysis of information about changes in its key diagnostic parameters.
статья, добавлен 12.09.2024Cases of using aptamer sensors and a highly sensitive bioluminescent reporter regulated by obelin photoprotein to detect diagnostically important targets in the blood of patients are described. Prospects for the development of analytical systems.
статья, добавлен 14.04.2022Schemes at medium voltage supply condition of neutral wire connection conditions. Measures to reduce investment in low voltage networks. The supply of isolated monophase consumer at MV by ground return. Technical limits for using small power transformers.
статья, добавлен 02.02.2019Investigation of the possibility of constructing relay protection in transient processes. Calculation of the single-phase short-circuit transient of the L-398 "Monchegorsk" line and the possibility of using an adaptive relay protection terminal.
статья, добавлен 30.04.2018