有源型高压光纤电流互感器是电力系统计量、保护的重要设备。

An active optical fiber current transducer is an important device used in power system for measurement and protection.

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通过建立光纤电流互感器各主要光学器件的琼斯矩阵表达式，推出了反射式光纤电流互感器的干涉表达式，并分析了各光学器件主要参量对其测量准确度的影响。

Through building the expression of the main optical parts of the FOCT and the expression of interference, the precision which is affected by the parameters of the main optical parts was analyzed.

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把光纤技术引入电流互感器的设计中，介绍了光电式电流互感器的优点和总体设计方案，详细论述了系统的研制。

Optical fiber technology is introduced to CT design, advantages and design scheme of OECT are presented, and development of system is particularly discussed.

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