Earth Fault Analysis and Principle Mining of Traction System of CRH3 Series Multiple Units

Abstract

This paper describes the damage degree of the earth fault of the traction system and the reasons of the earth fault. The analysis and statistics of the earth faults are carried out according to the time and environment dimensions of Jing-Hu and Wu- Guang lines. The types and theory of earth faults in the traction system are introduced. At the same time, the data acquisition system of the vehicle-mounted IPC(Industrial Personal Computer) is developed. The 25EF earth fault data is collected in real time. The mathematical data analysis such as Bayesian is used to filter and mine the big data, and the development pricinple and trend of the earth fault of the traction system has obtained. This method has a guiding role in predicting the traction earth fault of the CRH3 Series EMU.