6 kV变电站备自投改造新增快切装置探析  

Analysis of the Newly-Added Quick-Cutting Device in the Retrofitting of 6 kV Substations

作　　者：马强 MA Qiang(Electric Work District 1,Tianjin Petrochemical Electric Apparatus Center,Tianjin 300271,China)

机构地区：[1]天津石化电仪中心电气作业一区,天津300271

出　　处：《电工技术》2021年第11期133-134,137,共3页Electric Engineering

摘　　要：对于连续供电的石油化工企业,传统备自投切换时间较长,易造成大部分电动机失压跳闸,引起生产装置波动。为此,供电系统新增快切装置,通过快速切换和检同期方式,快速完成电源故障切除,降低了电网波动或电源故障瞬时失电情况下对供电系统造成的影响。For petrochemical enterprises with continuous power supply,the traditional standby automatic switchover time is long,which is easy to cause most of the motors to lose voltage and trip,causing fluctuations in the production equipment.To this end,the power supply system adds a quick cut device.Through the fast switching and checking synchronization method,the power failure removal can be completed quickly,which reduces the impact on the power supply system caused by grid fluctuations or instantaneous power failure.

关 键 词：快切装置 备自投 快速合闸 同期捕捉 

分 类 号：TM712[电气工程—电力系统及自动化]