Analysis and Treatment of Single-phase Grounding Fault of Turbo-generator Stator
This paper reports the analysis and treatment of a generator stator grounding protection signal start fault.Based on the waveform data recorded by the protection device,initial diagnosis is made on the grounding phase and grounding position.Through the outage check,it is determined that due to the rubber bellow of the enclosed bus is broken,the disk-type insulator is affected with damp,which triggers the stator grounding protection signal.The root cause of the rubber bellow rupture is determined by disassembling analysis,and the corresponding treatment and prevention measures are for-mulated.
万方数据
维普
