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

The Korean Institute of Electrical Engineers (대한전기학회)
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The Output Property of Optical CT for the 170 kV GIS Owing to the Compensation of Linear Birefringence at Optical Fibers

광섬유의 선형복굴절 보상에 따른 170 kV GIS용 전류 센서의 출력 특성

  • 정재용 (청주대학교 물리광학과) ;
  • 김병태 (청주대학교 레이저정보공학과)
  • Published : 2005.02.01
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Abstract

The optical CT was developed to use twisted fibers for 170 kV GIS. The fiber sensor optimized on the optical CT was wound 3 turns and twisted 4 times per a turn at the pipe with a diameter of 130 mm. The measurement error for the linearity which was satisfied the criterion of 'IEC Class-1.0' was less than ± 0.44 % at the transmission type and ± 0.82 % at the reflection type to 2,000 A. At a low current to 200 A, the measurement error was ± 0.69% at the transmission type and ± 1.38 % at the reflection type.

Keywords

References

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