| Title |
The Output Property of Optical CT for the 170 kV GIS Owing to the Compensation of Linear Birefringence at Optical Fibers |
| Authors |
정재용(Jeong Jae-Yong) ; 김병태(Kim Byung-Tai) |
| Keywords |
광섬유 전류센서 ; 선형복굴절 Optical Current Transformer ; Fiber Sensor ; Twisted Fiber |
| 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 ¡¾ 0.44 % at the transmission type and ¡¾ 0.82 % at the reflection type to 2,000 A. At a low current to 200 A, the measurement error was ¡¾ 0.69% at the transmission type and ¡¾ 1.38 % at the reflection type. |