浅谈发电机转子匝间故障检查和判断

Discussion on the Inspection and Judgement of the Turn-to-Turn Fault of Generator Amature

通过在汽轮机发电机定子线圈上预装的探头,测量转子线圈感应的电势,分析气隙磁势的变化,逐个比较各槽的磁势峰值,找到波形不一致的波形,实现转子匝间短路故障的自动判断,并结合现场实际情况,进行故障查找和判断。

Through the pre-installed probe on the stator coil of steam turbine generator,the induction potential of the rotor coil is measured and the change of the air gap magnetic potential is analyzed.And the peak magnetic potential of each slot is compared to find out the waveforms with inconsistent waveforms,so as to realize the automatic judgment of the turn-to-turn fault of amature,and combined with the actual situation on the spot,the faults are found out and judged.