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The Development of Low Cost Power Components Measurement and Record System for Monitoring Electrical Equipment Operation Status

전력설비 동작 상태 감시를 위한 저가형 전력 성분 측정 및 기록 시스템의 개발

  • Jeon, Jeong-Chay (Electrical Safety Research Institute, KESCO) ;
  • Oh, Hun (Department of Electrical Engineering, Wonkwang University)
  • 전정채 (한국전기안전공사 전기안전연구원) ;
  • 오훈 (원광대학교 전기공학과)
  • Received : 2015.03.27
  • Accepted : 2015.07.16
  • Published : 2015.07.31

Abstract

This paper proposes low price power component measurement and record system for preventing electrical safety accident and supporting accident cause analysis by periodically monitoring and recording the operation status of electrical equipments. The proposed system was designed by mainly using parts to measure accurate power component but reduce cost. Especially, low cost and high effectiveness system implementation was possible by using MAXIM 78M6631 to calculate power components in the definition of IEEE Standard 1459-2010 related power quality. The measurement performance of the developed system is tested by using standard devices such as YOKOGAWA power analyzer WT1600. The test results showed that accuracy of the developed system is less than 0.5 % and the developed system is tested in a real area to verify the operation reliability and remote monitoring performance of the system over 6 months.

본 논문에서는 전력설비의 동작 상태를 주기적으로 감시 및 기록함으로써 전기안전사고를 예방하고 사후 원인 분석을 지원하기 위한 저가형 전력 성분 측정 및 기록 시스템을 제안한다. 제안된 시스템에서는 정밀한 전력 성분의 측정과 기록, 원격 측정이 가능하면서도 비용을 줄일 수 있도록 부품을 선정하여 제작하였다. 특히, IEEE 1459-2010에 정의된 전력 성분을 계산하기 위해 MAXIM사의 78M6631을 이용함으로써 저비용 고성능 시스템 구현이 가능하였다. 개발된 시스템은 공인 시험기관에서 사용하고 있는 YOKOGAWA 전력분석기 WT1600 과 같은 표준 장비를 이용하여 측정 성능 시험을 실시하였다. 그 결과 측정 오차가 0.5%이하로 나타났고 6개월 이상 현장에 설치하여 동작 신뢰성과 원격 측정 성능 시험을 실시하여 그 성능을 입증하였다.

Keywords

References

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