Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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An Experimental Study on the Noise Reduction and the Feasibility of Short Current of a Silencer for a High Voltage COS Fuse

고전압 COS 퓨즈용 소음기의 소음저감 및 전류차단 성능에 관한 실험적 연구

  • 이동훈 (서울산업대학교 기계공학과) ;
  • 송화영 (서울산업대학교 에너지환경대학원 에너지시스템공학과)
  • Published : 2008.07.20
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Abstract

This experimental study describes the noise reduction and the feasibility of short current of a silencer for a high voltage COS(cut out switch) fuse of a transformer. When a high voltage COS fuse becomes a short circuit by the over current, the strong impulse noise over 150 dB(A) is generated. For the purpose of the reduction of impulse noise, in this study, the diffuser type and the reactive type silencers have been designed and tested, respectively. And also the electrical test on the short current is performed. From the experimental results, the well designed reactive type silencer has been shown to have the noise reduction of about 20 dB(A). It has been found that the feasibility of short current for the COS fuse is closely related to the porosity of the silencer.

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References

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