MAGNETO Ltd.

Częstochowa, Poland

MAGNETO Ltd.

Częstochowa, Poland
SEARCH FILTERS
Time filter
Source Type

Kozlowski A.,Magneto Ltd. | Rygal R.,Magneto Ltd. | Zurek S.,Megger Instruments Ltd.
IEEE Transactions on Magnetics | Year: 2014

A large dc electromagnet with a 200 mm long air gap was designed, constructed, and tested. Analytical calculations provided the first approximation of required parameters. The design was refined with the aid of finite element modeling. Thermomagnetic processing required nominal flux density level to be 0.35 T. It was validated on a prototype that the average flux density in the air gap exceeded this value. The magnetizing coils were designed to be cooled by natural air convection. Despite a large size (∼1900 kg), the electromagnet was designed to consume less than 2.5 kW and could be energized from a single-phase mains socket. © 2014 IEEE.


Soinski M.,Czestochowa University of Technology | Pluta W.,Czestochowa University of Technology | Zurek S.,Megger Instruments Ltd | Owski A.K.,Magneto Ltd.
International Journal of Applied Electromagnetics and Mechanics | Year: 2014

Instrument current and voltage transformers remain the basic apparatus used in measurements of energy in electrical grid. Increasing importance of distributed energy sources necessitates more precise measurements of consumed as well as generated electrical energy. Both types occur in low voltage network where the main focus is on current transformers for electronic-type electrical energy meters. These current transformers should fulfil many requirements for precise electrical energy measurements. This paper presents a modern system for measurement of various metrological features of current transformers. © 2014 - IOS Press and the authors.


Soinski M.,Czestochowa University of Technology | Leszczynski J.,AGH University of Science and Technology | Swieboda C.,Czestochowa University of Technology | Swieboda C.,Magneto Ltd. | Kwiecien M.,Magneto Ltd.
International Journal of Applied Electromagnetics and Mechanics | Year: 2015

Nanocrystalline Fe-based soft magnetic materials are more and more common not only in power electronics but also in power energy conversion systems. The use of different treatments (stacking and annealing methods) allows to achieve predefined properties of magnetic cores under consideration. This fact increase the applicability level of such magnetic cores. Different concepts of nanocrystalline magnetic stacked cores were discussed in the paper. Obtained results were compared to magnetic cores used up to now. © IOS Press and the authors. All rights reserved.


Soinski M.,Czestochowa University of Technology | Leszczynski J.,Czestochowa University of Technology | Swieboda C.,Czestochowa University of Technology | Swieboda C.,Magneto Ltd. | Kwiecien M.,Magneto Ltd.
IEEE Transactions on Magnetics | Year: 2014

Nanocrystalline Fe-based soft magnetic materials are more and more common not only in power electronic, but also in power energy conversion systems. The use of different treatments (the methods of stacking and annealing at/without magnetic field presence) on magnetic cores allow to achieve their predefined magnetic properties. This fact increases the level of the applicability such magnetic cores. Different concepts of nanocrystalline magnetic block cores were discussed in this paper. Obtained results were compared with magnetic cores used up to nowadays (made of amorphous and Fe-Si steel). © 2014 IEEE.


Swieboda C.,MAGNETO Ltd.
Electrodynamic and Mechatronic Systems - Proceedings of 2011, 3rd International Students Conference on Electrodynamics and Mechatronics, SCE III | Year: 2011

The following paper presents an analysis of current and future use of soft magnetic materials in power electronics, with emphasis on the most modern materials with nanocrystalline structure. The production process of nanocrystalline strips and the control method of their magnetic properties were shown. The lack of large nanocrystalline stacked magnetic cores was underlined. © 2011 IEEE.


Pytlech R.,Magneto Ltd.
IEEE Transactions on Magnetics | Year: 2010

This paper propounds a practice of using cut cores with a distributed air gap in the production of magnetic circuits for high quality medium voltage instrument transformers. It discusses utilization, for this purpose, of both grain-oriented and non-oriented electrical steel sheets of different grades, hence of considerably different characteristics and cost. The magnetic properties of the transformers were enhanced, and substantial technical and economical benefits in the manufacture of the end product were realized. © 2010 IEEE.

Loading MAGNETO Ltd. collaborators
Loading MAGNETO Ltd. collaborators