变电站备用电源自动投入装置应用分析探讨

Application Analysis of Automatic Bus Transfer Device of Standby Power in Substation

备用电源自动投入装置(以下简称备自投)目前在变电站中广泛应用,其一次主接线多采用内桥接线的方式。由于备自投与变电站内保护装置的基本判别逻辑及二次接线不同,本文从备自投的工作模式和投退判据、二次相关接线、与线路重合闸的配合、母线故障与备自投的关系、与母线带分布式电源的配合、主变压器低压侧带分布式电源、备自投引起过负荷进行了分析探讨,总结了备自投在日常检修维护方面需要注意的问题,确保备自投安全可靠运行。

Automatic bus transfer device has been widely used in substation, especially in the inner bridge connection, due to the difference of distinction logic and wiring between the different manufacturers devices, this article discuss many contents, involve the operating mode and cast back criterion, secondary equipment associated wiring, coordination with line reclosing, automatic bus transfer device action with bus fault, coordination with distributed generation when which exist in bus, low- voltage side of the transformer with distributed generation, caused overload, routine repair and maintenance etc to make summary and discussion, to ensure safe operation.