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Study on Magneto-Optic Balance Type of Optical Fiber Current Transformer Used in Extra-High Voltage Measurement

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2 Author(s)
Tang Ming-jie ; Electr. Eng. Sch., Xi''an Jiaotong Univ., Xi''an, China ; Cao Jian-an

To suppress the effect of the linear birefringence in optical fiber sensor on measurement accuracy, a new topology and control strategy of optical fiber current transformer (FOCT) based on the principle of magneto-optic balance was proposed, and the corresponding mathematical model was built, which proves the feasibility of this topology and control strategy, a simulation also conducted. The result shows that even if linear birefringence is high and Faraday rotation angle is large, the linear relationship still exists between measured quality and detectable quality.

Published in:

Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on  (Volume:3 )

Date of Conference:

6-7 Jan. 2011