Results 21 to 30 of about 82,191 (303)

A best-fit model of power losses in cold rolled-motor lamination steel operating in a wide range of frequency and magnetization [PDF]

open access: yes, 2007
A procedure is described for identifying a mathematical model of core losses in ferromagnetic steel based on a minimal amount of experimental data. The new model has a hysteresis loss multiplicative coefficient variable only with frequency, a hysteresis ...
Ionel, D.M., Popescu, M.
core   +1 more source

Reduction of eddy current losses around bushing holes on the top-plate of a high efficient transformer

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2017
Low voltage winding leads cause local eddy current losses in top-plate of the transformer tank. In this paper, this loss component which also causes local hot spots is investigated. Top-plate design is modified using stainless steel non-magnetic material,
Mehmet Aytaç ÇINAR   +4 more
doaj   +1 more source

Design and losses analysis of a high power density machine for flooded pump applications [PDF]

open access: yes, 2018
This paper describes the design process of a 10 kW 19000 rpm high power density surface mounted permanent magnet synchronous machine for a directly coupled pump application.
Al-Timimy, Ahmed   +8 more
core   +2 more sources

Dielectric losses in hydrogenated VT1-0 titanium in distribution in eddy current [PDF]

open access: yes, 2005
For the first time introduced the concept of the value of the dielectric loss in the hydrogenated titanium. Measurement of this value allowing more sensitive measurement of the distribution of hydrogen in the titanium sample according to the depth.
Al-Hussein, Mahmoud   +5 more
core   +2 more sources

General Analytical Model of Magnet Average Eddy-Current Volume Losses for Comparison of Multi-phase PM Machines with Concentrated Winding [PDF]

open access: yes, 2014
this paper studies magnet eddy-current losses in permanent magnet (PM) machines with concentrated winding. First of all, space harmonics of magnetomotive force (MMF) and their influence on magnet losses in electrical machines are investigated.
ASLAN, Bassel   +2 more
core   +6 more sources

A.C. loss contributions of the transport current and transverse field caused by combined action in a multifilamentary wire [PDF]

open access: yes, 1985
A.c. losses caused by an a.c. transport current and a transverse a.c. magnetic field during simultaneous action were measured. The loss contributions have been obtained separately.
Klundert, L.J.M. van de   +3 more
core   +2 more sources

Classical eddy current losses in soft magnetic composites [PDF]

open access: yesJournal of Applied Physics, 2013
This paper deals with the problem of loss evaluation in Soft Magnetic Composites (SMCs), focusing on the classical loss component. It is known that eddy currents can flow in these granular materials at two different scales, that of the single particle (microscopic eddy currents) and that of the specimen cross-section (macroscopic eddy currents), the ...
Appino, Carlo   +5 more
openaire   +3 more sources

Per-Unit Hysteresis and Eddy Loss Method Based on 3D Finite Elements for Non-Symmetric Toroidal Magnetic

open access: yesIEEE Access, 2020
Several main methodologies are used to estimate the core power loss (CPL) in magnetic components. One group is based in the Steinmetz equation (The modified one, the generalized one and the natural equations are the principals).
Jorge Rafael Gonzalez-Teodoro   +2 more
doaj   +1 more source

Fast Method for the Iron Losses Prediction in Inverter Fed Induction Motors [PDF]

open access: yes, 2010
In this paper an easy method for the iron loss prediction in PWM inverter fed induction motors is presented. The method was initially proposed and validated for the prediction of the iron losses in non-oriented soft magnetic material with PWM supply ...
Boglietti, Aldo   +2 more
core   +1 more source

Rotor Eddy-Current Loss in Permanent Magnet Brushless Machines [PDF]

open access: yesIEEE Transactions on Magnetics, 2004
This paper presents an analysis of the rotor eddy-current loss in modular and conventional topologies of permanent magnet brushless machine. The loss is evaluated both analytically and by time-stepped finite-element analysis, and it is shown that it can be significant in both machine topologies.
Toda, H.   +4 more
openaire   +2 more sources

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