受电弓是电力机车从接触网获得电能的重要电气部件。受电弓滑板作为受电弓的一个重要部件,与接触网接触并取电,同时滑板受到外力打击后,通过ADD阀自动降弓,防止扩大事故。通过受电弓故障自动降弓的案例分析,找出故障原因并提出对策及措施。 The pantograph is an important electrical component of an electric locomotive that receives electrical energy from the catenary. The pantograph skateboard as an important part of the pantograph contact with the catenary and take power, while the skateboard by the external force hit by the ADD valve automatically bow, to prevent the expansion of the accident. By pantograph automatic bow down case analysis to find out the cause of the malfunction and put forward countermeasures and measures.