Analysis And Improvement Of The Backup Power Switchover Unit’s Starting In The Substation

The standby power supply automatic switching device, which is an important part of the microcomputer protections in the substation, will close the busbar sectional izing switch automatically when single of the two power lines or double bus bar fault occurs. As a result,the device can guarantee the maximum normal power supply to the users and provide the backup power for the bus bar.Today,people pay more and more attention to the reliability of the power supply situation,The backup power switchover unit is already playing the bigger role. Zhejiang Fuyang power supply company as the background, the starting logic of the backup power switchover unit has gone through several processes and changed again and again, but there are still so many problems. By comparing several starting conditions, which are used in the actual cases.This article elaborates that the starting condition should be set adjust measures to the local conditions which is must not be the same, otherwise, the unit will be useless,especially a lot of power supply companys set the logic of the unit under a unified standard today,which makes the effect just the opposite. At last of the articl,several improvments are put forward to ensure that the device is working properly,which also should be used in future works.