Analysis and Improvement of Pantograph Carbon Strip Abnormal Wear on Luoyang Metro Line 1

Objective During inspection, problems like the bad pantograph and catenary relation, pantograph-catenary arcing on the main line, burning points and serious wear on the pantograph carbon strip are detected since the trial operation of Luoyang Metro Line 1. In order to solve the abnormal wear of pantograph carbon strip, it is necessary to study the causes and put forward solutions. Method The influence of the technical performance of the pantograph catenary, carbon strip material, the pantograph catenary grinding, contact pressure, external climate environment temperature and humidity on the pantograph catenary wear is mainly discussed. The influencing factors and the pattern of the pantograph catenary abnormal wear is examined. Result & Conclusion The research results show that the pantograph carbon strip wear on Luoyang Metro Line 1 is of central partial wear type. In order to solve such wear problems, targeted treatment measures and prevention suggestions are proposed, including establishing special accounts for catenary and pantograph, drawing on experiences of the peers in dealing with abnormal wear of the pantograph catenary, optimizing the maintenance mode according to the wear condition of the pantograph catenary, and making full use of information testing equipment such as the pantograph catenary inspection shed to improve the efficiency of monitoring and adjusting the technical parameters for pantograph catenary.