故障现象一开机,做冠状动脉造影时,控制台发出报警声。同时台面显示“ANODE SAFETY”字样。透视及曝光无射线。关机重启,故障依旧。故障分析与检修根据显示的“ANODE SATETY”(阳极安全)信息可初步判断该故障与球管的旋转阳极和相关的保护电路有关。由电原理图分析得知,该旋转阳极电路是采用两组大功率可控硅模块(IGBT)组成的独立全桥逆变器 A failure phenomenon boot, do coronary angiography, the console alarm sound. At the same time the table shows “ANODE SAFETY ” words. Perspective and exposure without radiation. Shutdown restart, the fault still. Failure Analysis and Troubleshooting According to the displayed “ANODE SATETY” (anode safety) information can be initially judged with the failure of the tube and the rotating anode anode and related protection circuit. From the electrical schematic analysis that the rotating anode circuit is the use of two high-power thyristor modules (IGBT) composed of independent full-bridge inverter