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分析汽轮发电机组常见故障的特征和表现形式，介绍一种汽轮机与发电机联合的状态监测与故障诊断安全保护系统。该“系统”全面监测机组轴系的弯曲振动和扭转振动、发电机定子绕组和铁心的温度、发电机风道的温度和湿度、绝缘放电以及发电机运行的各种工况参数，具有状态报告、事故报警、振动分析、趋势预测、数据管理和故障诊断等功能。该“系统”的安装和使用可以提高设备运行的安全性、稳定性和经济性，有利于延长机组的运行周期，缩短维修时间，促进机组维修从预防性维修和定期维修向预测性维修过渡
This paper analyzes the characteristics and manifestations of common failures of steam turbine generator sets, and introduces a combined condition monitoring and fault diagnosis safety protection system of steam turbine and generator. This “system” comprehensively monitors various operating parameters such as bending and torsional vibrations of generator shaft system, temperature of generator stator windings and cores, temperature and humidity of generator air duct, insulation discharge and generator operation. It has status report , Accident alarm, vibration analysis, trend prediction, data management and fault diagnosis. The installation and use of this “system” can improve the safety, stability and economy of the operation of the equipment, which can help to prolong the operating cycle of the unit, shorten the maintenance time and promote the maintenance of the unit. The transition from preventive maintenance and periodic maintenance to predictive maintenance