The Transactions of the Korean Institute of Electrical Engineers (대한전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Aging of Amorphous Fe-B-Si Wound Cores

Fe-B-Si 비정질 권철심의 경년 열화 연구

  • 민복기 (한국전기연구소 전기재료연구부) ;
  • 송재성 (한국전기연구소 전기재료연구부) ;
  • 강영호 (한국기술연구원 전력연구실) ;
  • 강원구 (한국전력 전력경제연구실)
  • Published : 1994.03.01

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Abstract

The aging characteristics of amorphous FeS178TBS113TSiS19T wound cores have been investigated as a function of aging temperature and time. The core losses(1.2T/60Hz) of amorphous wound cores dipped in transformer oil decrease in comparision with initial stage of aging test due to insulation of ribbon stacks by oil penetration. It is estimated that it takes 30 years or more for 10% increase in core losses (1.2T/60Hz) of amorphous wound cores aged at normal transformer running temperature(100$^{\circ}C$). So we condlude that the amorphous core is satisfactorily applicable to transformer.

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