空冷式发电机差动保护动作的原因分析

Analysis on reasons of differential protection action of air-cooled generator

介绍了QFW-6-2型空冷式发电机的原理及冷却系统,分析了发电机在调试期间2起差动保护动作产生的故障原因,采取了相应措施后,发电机恢复了正常运行。

The principle and the cooling system of QFW-6-2 air-cooled generator were introduced.The reasons of the faults,which caused the differential protection action two times during the generator debugging period,were analyzed.The relevant measures were adopted,and the generator operation became normal.