• Title/Summary/Keyword: current tansformer

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A Study on the Magnetic Field Analysis and Leakage Inductance in Current Transformers by 3D Integral Methods (3차원 적분법을 이용한 변류기의 자계해석과 누설 인덕턴스에 대한 연구)

  • 이희갑;박용필
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.14 no.9
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    • pp.768-772
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    • 2001
  • 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, ti confirms a parallel to the winding axis direction of the leakage flux lines in the air gap between the windings. The leakage inductances L$\sub$r1/ and L$\sub$r2/ of the primary and secondary winding were calculated, their values are 4.23 MH and 0.49 mH, respectively. They are also similar to the measured values of he leakage inductances of the experimental verification, 4.06 mH and 0.47 mH.

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