500kV线路保护弱馈问题的分析与探讨  

Analysis of weak-infeed problems for 500 kV line protections

作　　者：倪腊琴[1] 胡宏[1] 刘虎林[1] 

机构地区：[1]华东电力调度中心,上海200002

出　　处：《华东电力》2008年第6期50-52,共3页East China Electric Power

摘　　要：分析了不同弱电源系统输电线路故障特征,针对华东500 kV系统的特点,明确弱馈回路应正常运行时应投入。提出了改进弱馈回路的建议,并根据线路在系统中的不同运行特点给出弱馈回路的实际配置。The failure characteristics of the weak-infeed transmission lines are analyzed. According to the features of East China 500 kV system, it is pointed out that the weak-infeed circuit must be normally put into operation. Improvement suggestions for the weak-infeed circuit are proposed, and practical configurations for weak-infeed circuits are given based on their operational features.

关 键 词：弱馈回路 差动保护 高频保护 

分 类 号：TM726.1[电气工程—电力系统及自动化]