摘要
本文介绍了在一起变电站500kV扩建施工投产过程中,发生了线路反时限零序过流保护动作行为。作者通过研究保护动作时设备的运行状态,仔细分析了反时限零序过流保护的动作条件,发现了回路存在的问题并提出了解决措施。
The article describes inverse time current protection action during the commissioning process with the expansion of 500kV substation.Through researching the equipment condition carefully,inverse time current protection is analyzed in detail and the problems in the return circuit and corresponding resolutions are presented.
出处
《价值工程》
2010年第12期206-206,共1页
Value Engineering
关键词
零序反时限
两点接地
保护动作
inverse time current protection
two grounding points
protection action
