火电厂甩负荷未进 入FCB主要电气设备运行分析探讨

Analysis and Discussion on Operation of Main Electrical Equipment in the Accident of LoadRejection and not Enter FCB in Thermal Power Plant

结合实例分析系统故障甩负荷汽机跳闸,电厂电气设备的运行状态,包括发电机、励磁装置、发变组保护、电机及发变组保护动作厂用电失去后,柴油发电机、直流及UPS电源、快切装置运行状态等。探讨在此种事故过程中出现的问题,并给出的应对措施和改进方法。

Combined with examples,the operation status of system fault load rejection,steam turbine tripping and electrical equipment of the power plant,including generator,excitation device,generator transformer unit protection,motor,and the operation status of diesel generator,DC and UPS power supply and quick switching device after the loss of auxiliary power are analyzed.The problems in the process of such accidents are discussed,and the countermeasures and improvement methods are given.