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

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

입사편광에 따른 광섬유형 광 CT의 최적화

The Optimization of Optical Current Transformer owing to Incident Polarization

  • 김덕래 (단국대 의학레이저협동과) ;
  • 김병태 (청주대 레이저광정보공학과)
  • 발행 : 2005.09.01
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초록

The optical current transformer was developed for 170 kV GIS using optical fiber. The 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 m. To optimize the optical CT, the output signal was measured according to the setting angle of polarizer and analyzer, The asymmetry and distortion of the output signals were improved when the parallel polarized light was incident to the fiber sensor and under the angle of analyzer was $45^{o}$. The measurement error for the linearity was only $\pm{0.42}\;\%$ to 1,000 A in the case of reflection type.

키워드

참고문헌

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