The Transactions of the Korean Institute of Electrical Engineers C (대한전기학회논문지:전기물성ㆍ응용부문C)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A Study on Usefulness Verification Technique of the Measurement System by the Difference Between Caculated and Experimental Values of Ratio Error/phase Annie Error in Current Transformer

전류변성기의 비오차와 위상각오차의 계산값과 실험값의 차에 의한 측정시스템 유용성 검증기술에 관한 연구

  • Published : 2004.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

A current transformer(CT) used for the estabilishment of high current national standard, has generally very small ratio error and phase angle error. Both the errors of CT depend critically on the external burden used. When both the ratio and phase angle errors at two different burdens including zero burden are known, those at any other burdens are calculated theoretically. The theoretical values are well consistent with the experimental results within the $82{\times}10$-6, implying the measurement system of CT in KRISS is well maintained.

Keywords

References

  1. W. J. M. Moore and N. L. Kusters, 'Direct reading ratio-error sets for the calibration of current transformers,' IEEE Trans. Instrum. Meas., Vol. IM-19, No. 3, p161, 1970
  2. W. J. M. Moore, P. N. Miljanic, 'The current comparator', Peter Peregrinus Ltd., London, United Kingdom, 1988
  3. 정재갑 등, '고전압 비율 국가표준확립', KRISS 보고서, 2003
  4. 'American National Standard Requirements for Instrument Transformers', American National Standards Institute, ANSI/IEEE C57.13,, 1986
  5. John D. Ramboz and O. Petersons, 'A Calibration Service for Current Transformers' NIST Special Punlication, vol. 250, No. 36, p66, 1991
  6. G. Jones, 'Current Transformer Measurement' NPL Special Publication, 1994
  7. 권성원 등, '교류전압 전류의 정밀측정과 계기용 변성기', KRISS-99-091-ET, 1999