Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Leakage Inductance in Current Transformers by 3D Integral Methods

3차원 적분법을 이용한 변류기의 누설 인덕턴스에 대한 연구

  • 이희갑 (대한상공회의소 인력개발원) ;
  • 박용필 (동신대학교 전기전자공학과) ;
  • 이성일 (충주대학교 안전공학과)
  • Published : 2002.11.09
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Abstract

This paper presents leakage magnetic field and leakage inductance calculations in current transformer by means of 3-D Integral methods. From the distribution diagram of leakage magnetic flux to be analyzed using program called TRACAL 3, it confirms a parallel to the winding axis direction of the leakage flux lines in the air gap between the windings. The leakage inductances $L_{r1}\;and\;L_{r2}$ of the primary and secondary windings were calculated, their values are 4.23 mH and 0.49 mH, respectively. They are also similar to the measured values of the leakage inductances for the experimental verification, 4.06 mH and 0.47 mH.

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