Study on Operation Environment Integrated Monitoring of Railway Signaling Indoor Equipment
Research purposes:This paper analyzed the intrusion route and evolution mechanism of several risk factors,such as lightning and return current intrusion,degradation or invalidation of lightning protection and earthing,earth potential counterattack,fault arc and heating of electrical equipment which endangers normal operation of signaling indoor equipment.Solutions and monitoring manners were proposed,the monitoring data was collected,and the trend of equipment status based on big data analysis was analyzed in order to meet the target of warning,alarm and linkage.It could also help decide failure causes quickly,and take valid emergency measures and avoid expansion of failure.Research conclusions:(1)The aluminum sheath of lead-in indoor cable was replaced based on current specification.(2)The integrated monitoring platform of indoor operation environment was established based on terminating monitoring,lightning monitoring,earthing monitoring and fault arc monitoring at station,to realize failure diagnose and warning function.The central equipment can realize multiple system monitoring,failure diagnose,analysis and positioning function.(3)The research results can be applied at signaling intelligent maintenance field,and can be taken as reference for development and application of indoor operation environment monitoring system.
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