Fault analysis and improvement of train DC contactor coil
In order to improve the quality and stability of DC contactor coils for trains,this paper uses the fault tree tool to figure out eight bottom events based on three fault modes that occur during product application:poor insulation,open coil loop and coil ablation,,and makes eight improvement plans in three categories:design optimization,process improvement and process control.Finally,five tests are designed for the three fault modes,and through the test verification,the coil voltage resistance,process protection,winding,dipping,lead and injection molding are all improved.In this paper,the fault analysis and improvement plan of DC contactor coil for train can provide reference for troubleshooting and product iteration of DC contactor coil,reduce product failure rate and improve quality stability.
万方数据
维普
