Evaluation of a Motor with an Amorphous Iron Core Punched by a Die

The motor of traditional silicon material possesses the disadvantages of high iron loss, power consumption and a low efficiency. A new type of motor iron core made of amorphous alloy material is put forward in this paper. First, in order to research the stator characteristics of amorphous iron core and silicon steel core, the stator core of three-phase asynchronous motor is fabricated with silicon and amorphous materials. The magnetic performances and alternating loss of the iron cores made by two kinds of materials are tested with in the TD8120 test system. Then, the finite element analysis model of three-phase asynchronous motor is established. The motor of amorphous iron core and silicon steel core are simulated by finite element method. It is showed that the simulation and test results are in good condition within error range. It can be known that the performance and efficiency of motor made by amorphous alloy core are better than the performance and efficiency of motor made by silicon steel core. Results presented in this paper have important significance to carry out the study of amorphous motor.

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A magnetic super lattice

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100126597 ◽

1987 ◽

Vol 45 ◽

pp. 360-361 ◽

Cited By ~ 1

Author(s):

M.D. Bentzon ◽

J. v. Wonterghem ◽

A. Thölén

Keyword(s):

Thermal Decomposition ◽

Oleic Acid ◽

Magnetic Fluid ◽

Magnetic Particles ◽

Carbon Film ◽

Thick Layer ◽

Amorphous Iron ◽

Super Lattice ◽

Carrier Liquid ◽

Median Diameter

We report on the oxidation of a magnetic fluid. The oxidation results in magnetic super lattice crystals. The “atoms” are hematite (α-Fe2O3) particles with a diameter ø = 6.9 nm and they are covered with a 1-2 nm thick layer of surfactant molecules.Magnetic fluids are homogeneous suspensions of small magnetic particles in a carrier liquid. To prevent agglomeration, the particles are coated with surfactant molecules. The magnetic fluid studied in this work was produced by thermal decomposition of Fe(CO)5 in Declin (carrier liquid) in the presence of oleic acid (surfactant). The magnetic particles consist of an amorphous iron-carbon alloy. For TEM investigation a droplet of the fluid was added to benzine and a carbon film on a copper net was immersed. When exposed to air the sample starts burning. The oxidation and electron irradiation transform the magnetic particles into hematite (α-Fe2O3) particles with a median diameter ø = 6.9 nm.

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CORROSION BEHAVIOR OF AMORPHOUS IRON-BASE ALLOYS

Le Journal de Physique Colloques ◽

10.1051/jphyscol:19808213 ◽

1980 ◽

Vol 41 (C8) ◽

pp. C8-862-C8-866

Author(s):

M. Naka ◽

K. Hashimoto ◽

K. Asami ◽

T. Masumoto

Keyword(s):

Corrosion Behavior ◽

Amorphous Iron ◽

Iron Base

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THE FORMATION, STRUCTURE AND DISSOLUTION OF THE FERRITIN IRON CORE STUDIED BY X-RAY ABSORPTION SPECTROSCOPY

Le Journal de Physique Colloques ◽

10.1051/jphyscol:19868225 ◽

1986 ◽

Vol 47 (C8) ◽

pp. C8-1155-C8-1157

Author(s):

E. C. THEIL ◽

D. E. SAYERS ◽

C. Y. YANG ◽

A. FONTAINE ◽

E. DARTYGE

Keyword(s):

Absorption Spectroscopy ◽

Iron Core ◽

X Ray ◽

Ferritin Iron ◽

X Ray Absorption

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REDUCED MODEL OF PLASMA DISCHARGE CONTROL IN TOKAMAK WITH IRON CORE

Computational nanotechnology ◽

10.33693/2313-223x-2020-7-3-11-22 ◽

2020 ◽

Vol 7 (3) ◽

pp. 11-22

Author(s):

VALERY ANDREEV ◽

◽

ALEXANDER POPOV

Keyword(s):

Optimal Control ◽

Inverse Problem ◽

Optimal Control Problem ◽

Control Problem ◽

Nonlinear Behavior ◽

Plasma Discharge ◽

Reduced Model ◽

Iron Core ◽

Power Sources ◽

Real Power

A reduced model has been developed to describe the time evolution of a discharge in an iron core tokamak, taking into account the nonlinear behavior of the ferromagnetic during the discharge. The calculation of the discharge scenario and program regime in the tokamak is formulated as an inverse problem - the optimal control problem. The methods for solving the problem are compared and the analysis of the correctness and stability of the control problem is carried out. A model of “quasi-optimal” control is proposed, which allows one to take into account real power sources. The discharge scenarios are calculated for the T-15 tokamak with an iron core.

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Development of High-Force-Density Iron-Core Linear Synchronous Motor

IEEJ Transactions on Industry Applications ◽

10.1541/ieejias.132.480 ◽

2012 ◽

Vol 132 (4) ◽

pp. 480-486 ◽

Cited By ~ 2

Author(s):

Masanobu Kakihara ◽

Toshiyuki Hoshi ◽

Toru Shikayama ◽

Motomichi Ohto

Keyword(s):

Synchronous Motor ◽

Force Density ◽

Iron Core ◽

Linear Synchronous Motor

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New Method of Surge Analysis on Transformer Windings under Consideration of Iron Core

IEEJ Transactions on Power and Energy ◽

10.1541/ieejpes.135.711 ◽

2015 ◽

Vol 135 (12) ◽

pp. 711-716

Author(s):

Hiroyuki Fujita ◽

Kenichi Kawamura ◽

Keizo Inagaki

Keyword(s):

New Method ◽

Iron Core

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Temperature Control System for Transformer Three-Phase 50 Hz 2500 kVA

JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI ◽

10.36722/sst.v3i2.190 ◽

2017 ◽

Vol 3 (2) ◽

pp. 88

Author(s):

Suci Rahmatia ◽

Marsah Zaysi Makhudzia

Keyword(s):

Optimal Control ◽

Control System ◽

Heat Loss ◽

Temperature Control ◽

Electrical Energy ◽

Temperature Control System ◽

Iron Core ◽

Electrical Device ◽

Optimal Control System ◽

Three Phase

Abstrak - Transformator adalah peralatan listrik yang sangat vital dalam proses pembangkitan maupun transmisi energi listrik karena transformator dapat menaikkan atau menurunkan tegangan. Pada proses menaikkan dan menurunkan tegangan biasanya sering timbul panas akibat rugi – rugi tembaga pada inti besi dan kumparannya sehingga pada kondisi overload akan menimbulkan pemanasan yang berlebih dan dapat mempengaruhi kinerja transformator. Oleh karena itu dibuat sistem kontrol temperatur pada transformer yang dapat mengontrol temperatur di dalam transformator saat bekerja pada kondisi overload, sehigga transformatornya tidak terbakar. Dial thermometer digunakan sebagai alat yang mengontrol temperatur transformator pada sistem kontrol temperatur. Agar mendapatkan sistem kontrol yang optimal, maka setting temperatur pada dial thermometer di sesuaikan dengan temperatur maksimal tranformator dapat bekerja. Sehingga pada saat temperatur tertentu dial thermometer dapat memberikan sinyal untuk membunyikan alarm dan mengaktifkan kontrol kipas sehingga kipas dapat bekerja menurunkan temperatur transformator. Kata kunci - transformator, rugi – rugi tembaga, temperatur, sistem kontrol, dial thermometer. Abstract - A transformer is an electrical device that is vital in the generation and transmission of electrical energy because the transformer can raise (stepping up) or lower (stepping down) the voltage. In the process of raising and lowering the voltage is usually often caused heat loss of copper in iron core and coil so that the overload condition will cause excessive warming and can affect the performance of the transformer. Therefore, a temperature control system on the transformer can control the temperature inside the transformer while working under overload conditions, so the transformer is not burned. Dial thermometer is used as a device that controls the temperature of the transformer in the temperature control system. In order to obtain an optimal control system, the temperature setting on the dial thermometer adjusted to the maximum transformer temperature can work. So that when a certain temperature dial thermometer can provide a signal to sound the alarm and activate the fan control so that the fan can work down the transformer temperature. Keywords - transformator, loss of copper, themperature, control system, dial thermometer

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