Urban(suburban)railways use the AC 25 kV power supply system instead of DC 750 V/1500 V,to meet the construction requirements of high transmission capacity,high speed,and low loss.However,the change of power supply system will cause electromagnetic interference to such trackside equipment of the signaling system as axle counter.This paper examines the interference sources of the 25 kV power supply system and the working principles of mainstream axle counters,and analyzes how to protect the axle counters from interference through internal and external measures.
urban(suburban)rail transportAC 25 kV power supply systemaxle counter
维普
万方数据
