Analysis of factors impacting on operation of optic protections, putting forward channel switch scheme of fiber protection when bypass breaker as line breaker.

分析了影响光纤电流纵差保护正常的原因，提出了旁代时通道的切换方案以及日常运行管理的几点建议。

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The scheme can be implemented by using the CPLD chip, and used for the channel coder in a radar digital optic-fiber communication system and improving the features of clock extraction.

用复杂可编程芯片(CPLD)实现，并用于雷达数字光纤通信系统的信道编码，提高了时钟提取的性能。

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In this paper a current differential relaying system using fiber-oPtic signal transmission channel is described.

本文研究提出了一种应用光纤通道的短距离输电线电流差动保护方案。

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