[Keywords]  Rail Transit, Automatic Blocking/Power Continuous Lines, Mixed Line, Fault Monitoring, Fault Localization, Fault Cause Identification, Single-phase Grounding

automatic blocking and continuous railway power transmission lines are commonly installed using a combination of overhead lines and cables. They operate with an isolated neutral system, allowing single-phase grounding without tripping. However, these lines often experience numerous defects over time. The monitoring device continuously monitors fault-generated power frequency and traveling wave signals. This enables precise fault localization and identification of fault causes, effectively addressing single-phase grounding faults and distinguishing between faults occurring in the cable section or overhead section.

l Application

Applicable to railway 10kV automatic blocking and continuous railway power transmission lines, overhead lines, cable lines, mixed lines, and T-connected lines.