10kV配网线路保护不正确动作探讨  

Discussion on Misoperation of 10 kV Distribution Line Protection

作　　者：刘士祥 薛建[2] 左宝峰[2] 李树芃[2] 

机构地区：[1]延安供电局,陕西延安716000 [2]陕西电力科学研究院,陕西西安710054

出　　处：《陕西电力》2008年第11期79-82,共4页Shanxi Electric Power

摘　　要：针对10 kV配网线路中因励磁涌流引起的无时限电流保护发生的误动作,分析了误动作的原因,提出了当前配网线路中无时限电流保护运行中应采取的措施,并对配网线路中无时限电流保护的实现方案进行了探讨。Aiming at the misoperation of instantaneous relay protection caused by magnetizing inrush current in 10 kV distribution line, its causes are analyzed. The measures that should be adopted in the operation of the instantaneous relay protection in the 10 kV distribution line are put forward, and an implementation scheme for the instantaneous relay protection is discussed.

关 键 词：配网线路 励磁涌流 保护 误动作 

分 类 号：TM771[电气工程—电力系统及自动化]