Magnetic Field and Eddy Current Losses in Transformer Tank
نویسندگان
چکیده
منابع مشابه
Eddy Current Losses in Transformer Windings and Circuit Wiring
Skin Effect Figure 1 shows the magnetic field (flux lines) in and around a conductor carrying dc or low frequency current I. The field is radially symmetrical, as shown, only if the return current with its associated field is at a great distance. At low frequency, the energy in the magnetic field is trivial compared to the energy loss in the resistance of the wire. Hence the current Introductio...
متن کاملClassical eddy current losses in Soft Magnetic Composites
1 a Corresponding author: [email protected] 2 This paper deals with the problem of loss evaluation in Soft Magnetic Composites (SMC), focusing 2 on the classical loss component. It is known that eddy currents can flow in these granular materials at 3 two different scales, that of the single particle (microscopic eddy currents) and that of the specimen 4 cross-section (macroscopic edd...
متن کاملQuantification and compensation of eddy-current-induced magnetic-field gradients.
Two robust techniques for quantification and compensation of eddy-current-induced magnetic-field gradients and static magnetic-field shifts (ΔB0) in MRI systems are described. Purpose-built 1-D or six-point phantoms are employed. Both procedures involve measuring the effects of a prior magnetic-field-gradient test pulse on the phantom's free induction decay (FID). Phantom-specific analysis of t...
متن کاملField Diffusion Equation in High-speed Surface-mounted Permanent Magnet Motors, Parasitic Eddy-current Losses
The authors present a general computation of the time-varying magnetic flux density distribution of high-speed surface mounted permanent magnet (PM) motors (SMPMM). It deals with an analytical model (AM) which is based on a two-dimensional (2-D) analysis in polar co-ordinates and solves the governing Helmholtz/Laplace field equation in the airgap/magnet/rotor yoke regions, with due account of t...
متن کاملLosses in HTS Tapes due to AC External Magnetic Field and AC Transport Current
The E-J power law as electric characterization of the HTS material in Finite Element computations has shown good agreement with measurements of field-dependent critical current density and losses due to transport current. We use this technique to investigate the loss caused by AC transport current in self-field and in applied AC magnetic field in both rectangular monocore and multicore tapes, w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEJ Transactions on Power and Energy
سال: 1976
ISSN: 0385-4213,1348-8147
DOI: 10.1541/ieejpes1972.96.465