At the same time, it illustrates how to define trigger event, how to define genus and object in power system and how to use the active object-oriented database technology in power system.

• 文中给出了触发事件的定义示例，给出了电力系统的类以及对象的定义示例，并说明了应用这一数据库技术于电力系统自动监视与控制的过程。