Analysis of influence of spring melting season on 50Hz phase sensitive track circuit of metro DC monorail
The main function of the 50Hz phase sensitive track circuit of metro DC monorail is to check train occupancy and clearance.The track circuit shares the rail with the main gate of metro works,and is associated with the traction power supply system.Among them,the subway line mainly adopts 1500V DC traction,and the track circuit is not only the path of traction backflow,but also the transmission medium of the signal circuit.At the same time,the influence of rising temperature and melting ice and snow is particularly obvious in spring.Based on the correlation between the track circuit and other equipment,this paper will focus on analyzing the red light belt problem in spring melting season and propose countermeasures.
DC monorail 50Hz phase sensitive track circuitrail insulationspring bar fastenerreturn line
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