• DocumentCode
    3801457
  • Title

    A Portable Current-Comparator-Based System for On-Site Calibrations of Low-Power-Factor Wattmeters

  • Author

    Eddy So;Branislav Djokic

  • Author_Institution
    Inst. for Nat. Meas. Stand., National Res. Council of Canada, Ottawa, Ont.
  • Volume
    56
  • Issue
    2
  • fYear
    2007
  • Firstpage
    581
  • Lastpage
    583
  • Abstract
    In this paper, a portable system for on-site calibration of low-power-factor wattmeters in high-voltage transformer/ reactor loss-measuring systems under sinusoidal conditions using a current-comparator technique is described. Measurements can be made at any power factor between zero (lead/lag) and 0.1, at a voltage of 120 V, currents of 0.1 A, 1 A, and 5 A, and a frequency of 50 Hz or 60 Hz with an uncertainty of 20 muW/VA (k = 2)
  • Keywords
    "Calibration","Wattmeters","Reactive power","Current transformers","Power transformers","Testing","Loss measurement","Inductors","Power measurement","Phase measurement"
  • Journal_Title
    IEEE Transactions on Instrumentation and Measurement
  • Publisher
    ieee
  • ISSN
    0018-9456
  • Type

    jour

  • DOI
    10.1109/TIM.2007.890594
  • Filename
    4126912
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3801457