微机距离保护中典型误动情况分析  

Analysis of typical malfunction in microcomputer distance protection

作　　者：王茂[1] 马铁军[1] 

机构地区：[1]内蒙古国华准格尔发电有限责任公司,内蒙古准格尔010300

出　　处：《华电技术》2008年第8期49-52,共4页HUADIAN TECHNOLOGY

摘　　要：由于距离保护的性能受电力系统运行方式的影响小,因其运行灵活、动作可靠、性能稳定,而被普遍应用在各种电压等级的线路上。该保护方式虽然存在上述优点,但要想做好距离保护还有许多需要注意的方面,其中较为常见的问题就是距离保护中涉及到的几种误动情况。对几种情况进行了分析,给出了防止误动的具体措施。The distance protection has advantageous of flexible operation mode, reliable action and stable performance due to the performance of distance protection is influenced by electric system operation mode slightly, so distance protection is applied in lines of various voltage classes. But there are some problems needing attention in distance protection, and several malfunction faults are the problems occurred frequently. The several malfunction faults were analyzed, and the concrete measures to prevent malfunction were given in this paper.

关 键 词：微机保护 距离保护 阻抗特性 超越 后加速 涌流 

分 类 号：TM588[电气工程—电器]