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论述了利港电厂１号机组ＭＦＴ动作的条件，并对投产初期实际运行中ＭＦＴ原因作了分析。分析表明，其原因是多方面的，在逻辑设计、安装、调试、运行及设备质量等方面均存在一定的问题，其中以ＭＦＴ条件的逻辑设计不合理较多。如发电机跳闸后的切换逻辑、给水泵过载保护的切断逻辑及高压旁路门强制关闭的逻辑设计等均造成不应有的ＭＦＴ。至于安装、调试及运行方面造成的ＭＦＴ，则是由于这三方面的水平不高，如不按图施工、安装质量低、管系污脏造成水质及油质不良，安全门整定值不符合标准等因素，针对发现的问题，进行了相应的改进，使问题得到解决。
The condition of MFT operation for Unit 1 of LiGang Power Plant was discussed. The reason of MFT in actual operation was analyzed. The analysis shows that there are many reasons for this. There are some problems in the aspects of logic design, installation, commissioning, operation and equipment quality. Among them, the logical design of MFT conditions is unreasonable. Such as switching logic after the generator trip, cut off the logic of the pump overload protection and high-pressure bypass door forced to shut down the logical design Dengjun cause MFT should not be. As for the MFT caused by installation, commissioning and operation, the MFT is caused by the low level of these three aspects. If the construction is not done according to the drawings, the installation quality is low, Factors, for the problems found, the corresponding improvement, so that the problem is solved.