Electric power CT broken line identification method

The invention discloses an electric power CT disconnection identification method, and relates to the technical field of electric power systems. According to the method, target points meeting set conditions are screened out from data sampling points of a power data acquisition device in the latest day, a CT disconnection threshold value is calculated according to acquired data of the target points, and whether a power line is in overcurrent at the current moment or not is judged according to the calculated CT disconnection threshold value. And a CT disconnection alarm value is calculated according to the real-time three-phase current acquisition value of the electric power data acquisition device, and CT disconnection alarm information is timely sent out according to the calculated CT disconnection alarm value. The identification method provided by the invention is used for power data acquisition. 一种电力CT断线识别方法，涉及电力系统技术领域。该方法先从电力数据采集装置在最近一天的数据采样点中筛选出满足设定条件的目标点，再根据这些目标点的采集数据计算出CT断线阈值，根据计算出的CT断线阈值判断电力线路在当前时刻是否过流，