超温导致一次风机跳闸原因分析  

Analysis of Over Temperature Leading to Primary Air Fan Tripped

作　　者：范廷举 FAN Tingju(Suizhong Power Generation Co.,Ltd.,Huludao,Liaoning 125222,China)

机构地区：[1]绥中发电有限责任公司

出　　处：《东北电力技术》2020年第1期23-24,27,共3页Northeast Electric Power Technology

摘　　要：以某电厂前轴承温度超温导致A一次风机跳闸为例,介绍了热电阻温度元件的测量隐患,详细分析了设备误跳的原因,并具体给出了控制逻辑的优化方案。着重阐述了热电阻测量信号断线保护的重要性,为热电阻温度保护逻辑的搭建提供一定借鉴。Based on the front bearing over temperature leading to primary air fan tripped of a power plant,it focuses on the latent danger of the thermal resistor.It analyzes in detail the cause of the incident and gives a control logic optimization.It illustrates that the disconnection protection for thermal resistor is important.It provides some reference for thermal resistor temperature protection.

关 键 词：热电阻 温度保护 逻辑优化 断线保护 

分 类 号：TH811[机械工程—仪器科学与技术]