发电机零功率保护在300MW机组发变组保护中的应用

Research on zero power protection applied in 300MW unit generator-transformer protection

简要叙述了发电机零功率保护的原理,说明发变组保护中增设发电机零功率保护的必要性。应用实例,以逻辑图阐述现场实际整定及运行中需注意的事项。

The principle of zero power protection had been described briefly. The necessity of adding zero power protection to the gen-erator - transformer protection had been illustrated. With an application example, the matters that need attention in the actual setting or in the operation had been summarized by the logic diagram.