Influence of conductor eccentricity on Faraday phase shift errors of portable fiber-optic current transformer

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• 作者：Xiaxiao Wang ; Yuning Zhang ; ^{zhangyuning0731@163.com" class="auth_mail" title="E-mail the corresponding author} ; Jia Yu ; Yangyang Gao
• 关键词：P-FOCT ; Faraday phase shift error ; Non-closed sensing coil ; Conductor eccentric
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：127
• 期：20
• 页码：8505-8512
• 全文大小：1242 K

文摘

A portable fiber-optic current transformer (P-FOCT) with flexible sensing coil was proposed in this paper. The model has been established to describe the Faraday phase shift errors, which are influenced by the non-closed error of flexible sensing coil and eccentric position of current conductor. It has been obtained that the Faraday phase shift relative error is mainly influenced by the non-closed angle of sensing coil and can be decreased by increasing number of turns, the matching installation region of current conductor was found, the theoretical model was verified by the finite element method (FEM). It provides an important reference for the installation of P-FOCT to satisfy the accuracy requirement.