备用电源自投的问题以及应对措施

Standby Power Supply Automatic Switching Problems and Countermeasures

介绍了备用电源的自投原理、自投逻辑及备自投时限配合,通过加强管理和增加电压检测技术措施,使得目前备用电源自投装置存在的缺陷得到了改进,通过调整动作时限、增加主变容量等方法降低了动作过程中存在的风险,实际应用表明改进后的装置大大提高了备自投的可靠性,减少了误动作。

Introduction was made to the standby power supply automatic switching principle,the automatic switching logic,the automatic time limit matching etc. Via strengthening management and adding voltage test technical measures,defects existing in the present standby power supply automatic switching device were compensated. After action time limit adjusted,main transformer capacity increased and so on,the existing risks in action process were reduced. Actual application shows that the improved automatic switching device greatly raises reliability of automatic switching and reduces false operations.