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全光纤电流互感器对线路保护的影响
引用本文:沈韬.全光纤电流互感器对线路保护的影响[J].贵州电力技术,2014(3):46-49,63.
作者姓名:沈韬
作者单位:贵阳供电局,贵州贵阳550000
摘    要:介绍全光纤电流互感器工作原理和线路保护的基本原理,并总结了全光纤电流互感器的特点。重点分析全光纤电流互感器无饱和、高精度、频率范围宽等特性对距离分段保护及光纤差动保护的改善,以及全光纤电流互感器应用对双AD判据产生的影响;指出无介入式测量的优越性;最后阐述全光纤电流互感器随机噪声对保护产生的影响。

关 键 词:光学  电流互感器  线路保护

The influence of fiber optical current transformer on line protection
Affiliation:$hcn Tao (Guiyang Power Supply Bureau, Guiyang 550000 Guizhou, China)
Abstract:The paper had introduced the working principle of fiber optical current transformer and summarized the characteristic of fiber optical current transformer protection. The paper analyzed the improvement of properties of non-saturation, high-accuracy and wide-fre- quency range to the distance protection and fiber differential protection. This paper had introduced the influence of the application of fi- ber optical current transformer to double AD criterion, and had pointed out the superiority of non-intervene measurement. Finally, the influence of the noise of fiber optical current transformer on the protection had been elaborated.
Keywords:optics  current transformer  line protection
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