Results 251 to 260 of about 3,231,062 (301)
Some of the next articles are maybe not open access.
1995
Abstract After copper losses, core losses are generally the second largest component of power loss or inefficiency in the brushless motor, although their significance may become overriding at very high speeds. They arise from the variation of magnetic flux-density throughout the core, particularly the stator core.
TJE Miller, R Rabinovici
openaire +1 more source
Abstract After copper losses, core losses are generally the second largest component of power loss or inefficiency in the brushless motor, although their significance may become overriding at very high speeds. They arise from the variation of magnetic flux-density throughout the core, particularly the stator core.
TJE Miller, R Rabinovici
openaire +1 more source
Toward quantitative core-loss EFTEM tomography
Ultramicroscopy, 2011Core-loss EFTEM tomography provides three-dimensional structural and chemical information. Multiple inelastic scattering occurring in thick specimens as well as orientation-dependent diffraction contrast due to multiple elastic scattering, however, often limit its applications.
Jin-Phillipp, N., Koch, C., van Aken, P.
openaire +3 more sources
Electronics and Power, 1986
Great strides are being made in the development of new materials for use in transformer cores to reduce losses and reduce the operation costs of ...
openaire +1 more source
Great strides are being made in the development of new materials for use in transformer cores to reduce losses and reduce the operation costs of ...
openaire +1 more source
Core losses in partial core transformers
2022The University of Canterbury High Voltage Laboratory frequently uses partial core resonant transformers to conduct high voltage testing within the New Zealand power industry. These transformers utilise a non-standard core design in which flux is not constrained around the entirety of its path.
openaire +2 more sources
Core Losses Separation of Amorphous Alloy Core
Materials Science Forum, 2016In this paper, the core losses of Fe80Si9B11, Fe78Si9B13 amorphous alloy cores were separated to investigate the behaviors of hysteresis loss, eddy current loss and additional loss in high frequency range. The results showed that the losses of amorphous alloy core were mainly composed of hysteresis loss in low frequency. With the increase of frequency,
Shan Hong Li +3 more
openaire +1 more source
Error analysis of high frequency core loss measurement for low-permeability low-loss magnetic cores
2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC), 2016Magnetic components significantly contribute to the dissipated loss in power electronic converters. Measuring the true value of dissipated power in these components is highly desirable, since it can be used to verify the optimum design of these components.
Niroumand, Farideh Javidi +1 more
openaire +2 more sources
Low-loss Low-MDL Core Multiplexer for 3-Core Coupled-core Multi-core Fiber
Optical Fiber Communication Conference (OFC) 2020, 2020A fiber-based core multiplexer is designed, fabricated, and evaluated. Insertion losses vary between 0.74 dB and 0.91 dB. Digital holography reveals mode-dependent loss fluctuates between 0.3 dB and 0.9 dB across C- and L-band.
van der Heide, Sjoerd +7 more
openaire +2 more sources
Squirrel-cage induction-motor core losses
Journal of the A.I.E.E., 1925An experimental method is presented for segregating the various no-load losses of a squirrel-cage induction motor. It is shown that for insulated rotor bars the losses consist principally of stator fundamental-frequency losses, rotor surface losses and eddy-current losses in the rotor bars due to radial and tangential slot-leakage fluxes in the rotor ...
openaire +1 more source
Mathematical descriptions of core losses
Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics, 1953This paper presents results so far achieved by the writers in endeavoring to gain an understanding of the factors controlling a-c core losses in modern magnetic materials. Losses have been measured on a number of cores over a range of frequencies and at flux densities in the middle portions of the magnetization curves.
J. W. Hale, F. R. Richardson
openaire +1 more source
Deconvolution of core loss electron energy loss spectra
2009Experimental electron energy loss spectra (EELS) are related to inelastic scattering events in the sample by the so called single scattering distribution S(E) [1] (the differential cross section after integration in the detector acceptance angle). The relationship between the experimental spectrum and its S(E) is complicated because of several effects,
G. Bertoni, J. Verbeeck
openaire +1 more source