The Analysis of Inspection Frequency in Traction Power Systems

초록

Maintenance is one of the most important parts in traction power system. This paper presents the analysis of frequency inspection for maintenance in traction power system, considering reliability based inspection. The electric railway consists of traction power systems, various vehicles, operating equipment, track, overhead line and electric equipment. It is a fundamental function of traction power systems that supply customers with reasonable price, acceptable reliability and high quality power. Up to now, railway operating rule depends on a time based maintenance scheme, which performs the maintenance per a fixed interval. The inspection frequency of traction power system is applied by the same interval regardless of railroad lines environment condition, and the operating schedule. Also, it is appropriated by rule of thumb. In this paper, reliability based inspection (RBI) is suggested based on failure analysis. RBI is to decide inspection frequency based on contingencies and ensures the correct maintenance activities for traction power systems. The analysis of time schedule of operating and the aging of installed equipments is investigated in order to maximize of maintenance efficiency.