대한전기학회논문지:전기물성ㆍ응용부문C (The Transactions of the Korean Institute of Electrical Engineers C)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

구조 공진회피에 의한 변압기 소음저감

A Study of the Low Noise Transformer by Avoiding the Structural Resonance

  • 최원호 ((주)효성 중공업연구소 구조진동팀) ;
  • 김진 ((주)효성 중공업연구소 구조진동팀) ;
  • 석호일 ((주)효성 중공업연구소 구조진동팀)
  • 발행 : 2005.12.01
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초록

Demands for the noise reduction of a transformer has been becoming an common issue because it has been used mainly at the residence area such as an apartment complex. This paper shows 2 trouble shooting examples that high noise sources were found out structural resonance of a transformer by 120Hz exciting frequency caused from magnetostrictive vibration of core. This paper presents that vibration data are very important to find noise source and how to avoid natural frequency of core and tank wall

키워드

참고문헌

  1. C. A. Worth, 'The J&P Transformer Book', J & P Books, 11th Edition, Butterworth & Co., 1983
  2. 木村久男外 2人, '變壓器의 設計工作法',電氣書院, 1984
  3. R. L. Bean, 'Transformer for the Electric Power Industry', WECO, 1992
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  5. M. Kanoi, and Y. Hori, 'Transformer Noise Reduction with Sound Insulation Panel', Proceedings of IEEE Power Engineering Society, 83WM116, December, 1982
  6. D. A. Yannucci, 'Feasibility Study Of An System For Transformer Noise Abatement', WECO Report, TEM 1750, 1982
  7. C. M. Harris, 'Handbook of Acoustical Measurements and Noise Control', McGRAW HILL, INC., 1991
  8. S. Hagiwara, Y. Hori, and Y. Suzuki, 'Vibration Analysis of A Large Capacity Shut Reactor', Proceedings of IEEE Power Engineering Society 81 SM 474-6, April, 1981