大型汽轮发电机转子绕组匝间短路的故障处理与分析

某公司一台国产600MW汽轮发电机组,在开机过程中出现发电机轴振偏大,并且随励磁电流增大而增大,经过振动分析、电气试验等一系列检测程序,快速对故障进行了准确判断和较精确的定位,为机组尽快消缺争取了宝贵时间,为同类大型发电机组积累了相关经验和提供了相应参考。

Treatment and Analysis of Large Turbo-generator Rotor Winding Inter-turn Short Circuit Fault

During the start-up process,a high axis vibration fault occurred to a 600MW domestic turbo-generator unit,which increased with the field current.After a series of testing procedures,such as vibration analysis and electric test,we find the fault point quickly and accurately,so we saved a lot of precious time for the failure elimination,and so we have accumulated valuable experience for the same type units.