With regard to the phenomena of breakdown of insulation and rail arc burning occurred in insulation joint of track circuits of a high-speed railway, the causes of the phenomena are analyzed with referencing of characteristics of working conditions of the track maintenance department, communication and signal department and power supply department, schemes for improvement on structure design of insulation joint of track circuit, supplementing of special equipment of return current of power supply and improvement of return circuit are put forward so as to fundamentally eliminate the occurrence of such phenomena.
关键词
高速铁路/轨道绝缘节/牵引供电系统/电弧
Key words
high-speed railway/insulation joint of track circuit/traction power supply system/arc