전기동차 계기용 변압기 소손 해결방안 고찰

The EMU, which operates in the Korean 186 cars in 1973 has been introduced is the first contract. (KORAIL126, Seoul Metro60) August 15, 1974, the train of the Seoul metropolitan area was opened. A velocity control system by the resistance control which was first introduced copper wheel. Is currently undergoing development, the train of the inverter control system that has been introduced into the first has been operating in 1994 Gwacheon line. While running a new inverter control electric vehicles, some cases in which the vehicle potential transformer is burned occurs inconvenience to customers who use the train occurs. By presenting a solution to the cause of these failures was closely analyzed, I want to contribute to the improvement of services to the fall the image of recovery and national construction.