Journal of the Korean Society for Railway (한국철도학회논문집)

The Korean Society for Railway (한국철도학회)
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Development of a Ubiquitous Sensor for Monitoring Insulators and Lightning Arresters

애자/피뢰기 모니터링을 위한 유비쿼터스 센서 개발

  • 길경석 (한국해양대학교 전기전자공학부) ;
  • 류길수 (한국해양대학교 IT공학부) ;
  • 송재용 (국립과학수사연구소) ;
  • 김일권 (한국해양대학교 전기전자공학부) ;
  • 박대원 (한국해양대학교 전기전자공학부) ;
  • 최수연 (한국해양대학교 전기전자공학부)
  • Published : 2007.04.30
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Abstract

In this study, a ubiquitous sensor for condition monitoring of insulators and lightning arresters installed in power distribution lines and electric traction vehicles is presented. The sensor consists of two parts; a leakage current measurement and a lightning surge detection. Measured data are transmitted to a supervisory computer through ZigBee protocol based on IEEE 802.15.4. To detect leakage current, a window type Mn-ZCT is used and a low-noise amplifier with a gain of 60dB is designed, and this can measure leakage current in ranges of $100{\mu}A{\sim}5mA$. A sample-hold (S/H) and a Rogowski coil are injected to analyze the magnitude of surge current in ranges from 100A to 10kA with $8/20{\mu}s$-waveform.

Keywords

References

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