Influence on Traveling Wave Fault Location from Structural Characteristics of Railway Automatic Blocking Electric Lines

This paper, taken the railway 10kV automatic blocking electric line as the research object, discusses some structure factors which may affect the ranging accuracy of traveling wave method in the practical application of traveling wave fault location device, and establishes the simulation model to verify. These structure factors include the effect of transition resistance, terminal load combination form and the line branches' number before fault point.