当电网用电量过大或者其他原因时,会造电网过低的现象。当核电厂厂用电母线处于低电压运行状态时,会对核电厂的发电机以及电动机运行造成危害,降低发电机运行的稳定性,进一步影响电网的稳定性。本文阐述了核电厂母线低电压运行的危害,通过对核电厂母线电压降低程度的不同,提出了相应的处理方案,能有效处理核电厂母线低电压故障,保证机组稳定运行。 When the grid power consumption is too large or other reasons, it will create the phenomenon of low power grid. When a power plant busbar is in a low-voltage operation state, it will endanger the generator and the motor of the nuclear power plant, reduce the stability of the generator operation and further affect the stability of the power grid. This paper describes the hazards of low voltage operation of nuclear power plant bus. Through the different voltage reduction of nuclear power plant busbar, a corresponding treatment scheme is proposed, which can effectively deal with the low voltage fault of nuclear power plant busbar and ensure the stable operation of the unit.