一种特殊接线方式下的站变备自投故障分析与解决

站变备用电源自动投入装置(简称站变备自投)给全站的交直流用电提供安全的保障,对电力系统安全可靠运行具有非常重要的意义。该文以粤北某500kV变电站许继CSL210B型站变备自投装置在特殊接线方式下运行中出现的误动作为例,进行了分析与探索,找出了误动作的根源,并针对许继CSL210B型站变备自投装置在该站特殊接线方式下运行的特点,充分考虑到与现有的设计相兼容,对现有备自投装置硬件的设计进行了重新设计,消除了误动作根源,保证了该500kV变电站交直流站用电的安全稳定运行。

Fault analysis and solution of a substation reserved auto-switch-on fault with a particuliar mode of connection

A substations reserved auto-switch-on device,which provides a safe guarantee for power consumption of the substation, is important to the safe and reliable power supply in electric power systems.This paper takes the CSL210B reserved auto-switch-on device as an example,which was made in XJ Group Corporation has a very parculiar electric power connection. And this paper details this problem,and finds out mistake action origin. Consindering sufficiently an available design , it redsigns the device, eliminates the misaction origin, ensures the safety of 500 kV transformer substations stabilizes operation.