桥铝二厂330 kV远跳保护死区分析及对策

Analysis on the Dead Zone of the 330 kV Remote Trip Protection of the Seconary Qiao-tou Aluminum-Electricity Plant and the Countermeasures

远跳保护被广泛应用于高压电网中,能否最大程度发挥远跳保护作用,应根据系统接线方式的不同有所区别。针对桥铝二厂远跳保护进行分析,找出存在的死区,提出增加远跳保护启动条件的措施,避免保护死区的存在。

The remote trip protection is widely used in high voltage power grid.Whether can the protection work to the utmost is depened on the connection of the power grid.This paper analyzes the remote trip protection for the seconary Qiao-tou Aluminum-Electricity plant and recognizes the dead zone of the protection,and the measures to increase the prerequistes of the protection startup are given to avoide the dead zone.