核电TA1100-78型半速发电机轴电流检测系统在线测试与诊断分析

针对CPR1000 TA1100-78型半速发电机轴电流检测装置,提出了一种在功率平台下在线进行系统有效性测试的方法,该方法简单实用,可全面校验检测回路与监测装置本体的正确性,提高轴电流监测系统在机组起动后的可靠性。同时结合现场实践经验,对该机型轴电流出现后的异常诊断流程进行了分析,为同类型机组类似问题的处理提供参考。

Online Testing and Diagnosis of Shaft Current Detecting System of Nuclear Power TA1100-78 Type Half Speed Generator

For CPR1000 TA1100-78 half speed generator shaft current monitoring device, this paper puts forward an online validity test method on power platform. The method is simple and practical, the correctness of the detection circuit and the main body of the monitoring device can be fully checked, the reliability of the shaft current detection system can be improved after the generator start. At the same time, combined with the field practice, the abnormal diagnosis process for the shaft current is analyzed, which can provide reference for solving similar problems of the same type of unit.