安钢220 kV变电站继电保护改造中存在的问题及解决措施

摘要

针对范家庄220 kV变电站继电保护改造中存在的保护装置属淘汰产品，变电站原有设备不符合220 kV变电站标准配置等问题进行了论证，提出了直流负荷转接、110 kV PT改造等措施，为其他老旧变电站继电保护改造提供参考。%Some problems such as backward protection device and original equipment not accord with the standard exist in 220 kV substation relay protection of Fanjiazhuang. The paper analyses these problems, puts forwards corresponding measures from direct current load and 110 kV PT. It can provide reference for other substations.