光纤纵联保护装置中单相重合闸存在的问题和解决方法
Electrical Engineering(2012)
Abstract
通过分析CSC-103光纤电流差动保护装置在双侧电源时单相重合闸的动作行为,指出了光纤纵联保护装置中单相重合闸存在的缺陷,并提出了基于系统设备现状下的解决办法,更进一步分析介绍了耦合电压判据的单相自适应重合闸原理。该判据区分瞬时性和永久性故障正确率高,且简单、易行,在现实应用可以根本性解决缺陷。
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Key words
fiber-optic pilot,single-phase reclosing,permanent fault,bilateral power source,transient fault,coupling voltage
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