The problem of the disturbance to the axle counter equipment by the return current of traction power supply system is liable to occur while the AC power supply mode is adopted by the urban rail transit.With regard to this problem,the working principles of the axle counter system are analyzed.Monitoring,test and analysis are carried out for an urban rail transit line where the problem of the disturbance to the axle counter equipment is frequently occurred.The effective solutions are put forward as well.
disturbed axle counterequal current cableAC power supplytraction return current
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