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

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

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

정밀전력계의 교정과 시험을 위한 전력표준시스템

  • 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)
  • Published : 2002.11.01
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Abstract

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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References

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