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A Study on the Determination of the Transient Performance for Protective Current Transformer

보호용 CT의 과도 성능 검증에 관한 연구

  • 김동수 (한국전기연구원 기준개발실) ;
  • 박남옥 (한국전기연구원 전기특성평가실) ;
  • 김철환 (성균관대 정보통신공학부) ;
  • 류재남 (한국전기연구원 SmartGrid기기평가실)
  • Received : 2010.08.11
  • Accepted : 2010.08.16
  • Published : 2010.10.01

Abstract

The Current transformer is classified measuring CT and protective CT for their purpose. The measuring CT is required to retain a specified accuracy over the normal range of load currents, but the protective CT must be capable of providing an adequate output over wide range of fault condition. Therefore, the protective CT must determine the transient performance during fault condition. This paper measured peak instantaneous error of the TPY class CT to determine the transient performance directly and indirectly and studied the test results.

Keywords

References

  1. IEC 60044-1 Ed.1.2 2003-02 Instrument transformers- Part 1: Current transformers
  2. IEC 60044-6 Ed.1.0 1992-03 Instrument transformers- Part 6: Requirements for protective current transformers for transient performance
  3. ALEX Y. WU, "The Analysis of Current Transformer Transient Response and Its Effect on Current Relay Performance", IEEE Trans. ON INDUSTRY APPLICATIONS, VOL. IA-21, NO. 4, pp.793-802, 1985 https://doi.org/10.1109/TIA.1985.349500
  4. 김동수, 김철환, 이기택, 박남옥, "GUI를 이용한 교육용 디지털 거리계전기 시뮬레이터 개발에 관한 연구", Trans. KIEE, Vol. 54A, No.8, pp.390, 2005
  5. "Burdens & Current Transformer Requirements of MiCOM Relays Application Notes", AREVA
  6. "CT Analyzer User Manual", OMICRON
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