Rotational power losses under controlled flux density or magnetic field in electrical steel sheets

2006 ◽  
Author(s):  
S. Zurek ◽  
T. Meydan
Keyword(s):  
Magnetic Field ◽  
Flux Density ◽  
Electrical Steel ◽  
Power Losses ◽  
Steel Sheets ◽  
Electrical Steel Sheets ◽  
Rotational Power

scholarly journals Approximation of Hysteresis Changes in Electrical Steel Sheets

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4110
Author(s):  
Witold Mazgaj ◽  
Michal Sierzega ◽  
Zbigniew Szular
Keyword(s):  
Magnetic Field ◽  
Field Strength ◽  
Hysteresis Loop ◽  
Flux Density ◽  
Electrical Steel ◽  
Transformer Steel ◽  
Simple Method ◽  
Steel Sheets ◽  
Electrical Steel Sheets ◽  
The Magnetic Field

This paper describes a simple method of approximating hysteresis changes in electrical steel sheets. This method is based on assumptions that flux density or field strength changes are a sum or a difference of functions that describe one curve of the limiting hysteresis loop and a certain ‘transient’ component. Appropriate formulas that present the flux density as functions of the field strength and those that present inverse dependencies are proposed. An application of this approximation requires knowledge of the measured limiting hysteresis loop and a few minor loops. Algorithms for determining changes in the flux density or field strength are proposed and discussed. The correctness of the proposed approximation of hysteresis changes was verified through a comparison of measured hysteresis loops with the loops calculated for several different excitations of the magnetic field occurring in dynamo and transformer steel sheets. Additionally, an example of the application of the proposed approximation of hysteresis changes is discussed in the paper. The proposed approximation of hysteresis changes is recommended for numerical calculations of the magnetic field distribution in dynamo and transformer steel sheets.

ISSUES INVOLVED IN USING THE DIRECT METHOD FOR MAGNETIC FIELD STRENGTH MEASUREMENT OF ELECTRICAL STEEL SHEETS – REVIEW

2016 ◽  
Vol 63 (0) ◽  
pp. 71-82
Author(s):  
Dominika GAWORSKA-KONIAREK ◽  
Jerzy BAJOREK ◽  
Wiesław WILCZYŃSKI
Keyword(s):  
Magnetic Field ◽  
Field Strength ◽  
Magnetic Field Strength ◽  
Electrical Steel ◽  
Direct Method ◽  
Relevant Literature ◽  
Direct Methods ◽  
Existing Problems ◽  
Steel Sheets ◽  
Electrical Steel Sheets

The paper presents, based on a review of relevant literature, the existing problems of magnetic field strength measurements of electrical steel sheets by means of the indirect and direct methods. It also describes some attempts to solve these problems. The magnetic field strength sensors most widely used for testing electrical steel sheets are also discussed.

scholarly journals Magnetic Properties of Electrical Steel Sheets at High Flux Density

1998 ◽  
Vol 118 (9) ◽  
pp. 1029-1034 ◽  
Author(s):  
Chikara Kaido ◽  
Takeaki Wakisaka ◽  
Masato Mizokami ◽  
Masaki Tanaka
Keyword(s):  
Magnetic Properties ◽  
Flux Density ◽  
Electrical Steel ◽  
High Flux ◽  
Steel Sheets ◽  
Electrical Steel Sheets
Sign in / Sign up

Export Citation Format

Share Document