城轨车辆接地系统的改进研究

Research on Improvement of Grounding System for Urban Rail Vehicles

车辆的接地系统是提高车辆安全性、可靠性以及抗干扰能力的重要子系统。针对目前地铁车辆接地系统存在的相关问题提出解决方案,经过理论分析和现场试验,最终证明所提出的接地方案能够较好地抑制车体回流,防止轴承电蚀,提高车辆运行的可靠性和检修的安全性。

Grounding system is an importantsub system to improve vehicle safety,reliability and anti-jamming capability.Aiming at the related problems of grounding system of metro vehicles,some solutions are proposed.Through theoretic alanalysis and field experiments,it proves that the developed grounding schemes can restrain the carbodywork backflow,and prevent bearing electric erosion.These methods improve the reliability of vehicle operation and the safety of maintenance.