摘要
为解决小电流接地系统发生单相接地故障后,单相判据的小电流单相接地故障选线成功率普遍较低的问题,提出一种基于暂态首半波和零序电流有功分量方向的综合选线装置。硬件上,采用DSP和MCU的双CPU结构。该软硬件平台运算速度快、运行稳定,是小电流接地系统一种实用的选线平台。
Since the success rate of faulty line selection based on single criterion for single - phase earthing fault in non - solidly earthed network is normally low, a new comprehensive faulty line selection equipment is proposed which based on the first half transient wave and active component direction of zero - sequence current. A dual - CPU is designed, which make use of DSP and MCU. The device is approved a practical one for indirectly grounding power system.
出处
《煤矿机械》
北大核心
2008年第8期114-116,共3页
Coal Mine Machinery
关键词
小电流接地系统选线
暂态首半波
零序电流有功分量
综合选线
双CPU系统
fanlt line selection for indirectly grounding power system
first half transient wave
active compo- nent direction of zero - sequence current
integration line selection
dual - CPU system
