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广西鱼梁电厂总共安装了3台灯泡贯流式水轮发电机组,单机容量为21740kVA。其励磁系统采用自并激静止可控硅励磁方式,采用PID+PSS调节控制模式,由励磁调节器、人机界面、对外接口、可控硅静态励磁装置、灭磁装置及过压保护等组成。励磁调节器使用的是武汉联华电气有限责任公司开发研制的微机励磁调节器LH-WLT02微机励磁调节器。文章叙述了广西鱼梁电厂一起发电机失磁保护动作事故,分析了失磁保护动作的原因,制定了相应的应对措施。
Guangxi Yueliang Power Plant installed a total of three bulb tubular turbine units, stand-alone capacity of 21740kVA. The excitation system using self-excitation and static SCR excitation, the use of PID + PSS regulation control mode, the excitation regulator, man-machine interface, external interface, SCR static excitation device, de-excitation device and overvoltage protection and other components . Excitation regulator is used in Wuhan Lianhua Electric Co., Ltd. developed computer excitation regulator LH-WLT02 microcomputer excitation regulator. The paper describes a generator loss of magnetization protection operation accident in Guangxi Yueliang Power Plant, analyzes the reason of the loss of field protection action and formulates the corresponding countermeasures.