대한전기학회논문지:전기기기및에너지변환시스템부문B (The Transactions of the Korean Institute of Electrical Engineers B)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

정밀전력계의 교정과 시험을 위한 전력표준시스템

Power Standard System for the Calibration and Test of Precision Power Meters

  • 박영태 (韓國標準科學硏究院 電磁氣標準部) ;
  • 유권상 (韓國標準科學硏究院 電磁氣標準部) ;
  • 유광민 (韓國標準科學硏究院 電磁氣標準部) ;
  • 장석명 (忠南大學校工大 電氣工學科)
  • 발행 : 2002.11.01
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초록

The power comparison techniques have implemented power measurements, in which a power comparator is used to balance ac against a dc power obtained from known values. The developed power standard system using the comparison techniques consists of dc sources, ac source, control switches, resistive voltage dividers, resistive shunts and a power comparator. The total uncertainty of the power standard system was proved by analysis of the component instruments. Its expanded(k=2) uncertainty is evaluated to be less than 30 uW/VA at unit power factor and 42 uW/VA at power factor 0.5

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참고문헌

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