动车组受电弓与接触网高速动态接触,极易受到环境异物(飞鸟、垃圾等)或接触网松脱配件击打而损坏,导致动车组无法供电,短编组双弓故障无法实现自轮运行,严重影响高铁运行安全和运输秩序。以CRH2A型动车组DSA250型受电弓为例,提出应急处置办法,快速恢复动车组自轮运行,减少高铁秩序影响,具有较强实际应用价值。 EMU pantograph and catenary high-speed dynamic contact, vulnerable to environmental foreign bodies (birds, garbage, etc.) or catenary loose accessories hit and damaged, resulting in EMU can not supply power, short knot double bow failure can not be run from the wheel , Seriously affecting the safety of high-speed rail operations and transport order. Taking the CRA2A type of pantograph DSA250 as an example, the emergency response measures are put forward to quickly recover the EMU self-running and reduce the impact of the HSR order, which is of great practical value.