120VAC A通道失电的影响及响应研究

Research on Effects of the Loss of Power in 120VAC Channel A and Their Response

机组失去120VAC A通道电源会导致电站系统控制失效,运行人员面临极大挑战。主要列举了秦山三核UPS系统120VAC A通道失电对电站重要系统和设备的影响,为避免失电可能发生的故障,针对这些影响采取相应的措施,确保电站安全稳定运行。根据主控室操纵员的职责,分岗位指导运行人员根据优先级进行先期干预,对及时恢复电站的稳定状态有一定的指导意义。

The loss of power supply in the 120 VAC Channel A of the unit will lead to the failure of the system control of the plant,and operators will face great challenges.This paper mainly lists the impact of the loss of power in the 120 VACA Channel A of the UPS system in the Qinshan Phase III nuclear power plant on the important system and equipment of the power plant.In order to avoid the possible failure of the loss of power and solve these effects,this paper takes corresponding measures to alleviate accidents and ensure the safe and stable operation of the power plant.According to the responsibilities of the operators in the main control room,the operators are guided to intervene in advance according to the priority by position,which has certain guiding significance for timely restore the power plant to a stable state.