Energy Loss Measurement of Non-oriented Electrical Steel Sheets Under Rotational Magnetization

회전자화에 의한 무방향성 전기강판의 철손측정

  • Son, D. (Dept. of Physics, Hannam University) ;
  • Kum, Chae (Dept. of Physics, Chungnam National University)
  • 손대락 (한남대학교 물리학과) ;
  • 금채 (충남대학교 물리학과)
  • Published : 2000.08.01

Abstract

We have constructed a rotational loss measuring system which consists of two yoke system for rotational magnetization and 4-channel transient recording system for Hx, Hy, Bx and By measurements. Using the constructed measuring system, we have mesaured rotational energy loss for non-oriented electrical steel sheets. Rotational energy loss was depending on the angle between B-search coil and H-search coil, and the direction of rotation (clockwise and counter clockwise). The average of the rotational energy losses under clockwise and counter clockwise was independent of the angle between B-search coil and H-search coil, and we could improve measuring uncertainty using the averaged rotational energy losses.

본연구에서는 서로 직교하는 yoke 장치와 4-채널 과도기록장치를 사용하여 회전하는 자기장을 발생시키고, 회전자화에 의한 자기적 손실을 측정할 수 있는 측정시스템을 구성하였다. 개발된 측정장치를 사용하여 무방향규소강의 회전자화에 의한 자기적특성을 측정하였으며, 회전자화에 의한 손실의 측정에서 자기유도성분의 측정방향과 자화력성분의 측정방향이 일치하지 않아, 시계방향 및 반시계방향으로 측정한 값이 차이를 나타내었다. 그러나 시계방향 및 반시계방향으로 측정한 회전자화에 의한 손실값의 평균은 일정함을 알 수 있었으며, 이를 이용할 경우 회전자화의 폭정오차를 줄일 수 있었다.

Keywords

References

  1. IEC.404-3 Method of Measurment of Specific Total Losses of Magnetic Sheet and Strips by means of a Single Sheet Tester.
  2. IEEE MAG-20 Determination of AC Magnetic Power Loss of Electrical Steel : Present Status and Trends J. D. Sievert
  3. IEEE MAG-26 Recent Advances in the One-and Two-dimensio-nal Magnetic Measurement Technique for Electrical Sheet St-eel J. Sievert
  4. JMMM v.112 On Measuring the Magnetic Properties of Electrical Sheet Steel under Rotational Magnetization J. Sievert
  5. IEC Bulletin v.111 no.110 International Standardization of Magnetic Material for Totating Electrical Machines H. Teichmann