철도차량 고전압회로 계통의 위험도 평가

After first define the system for the power train of the railway car defines the failure analysis and metrics, and the structure and function analysis of the system, the severity of the failure mode, the frequency is to be determined by analyzing the criticality. System analysis is used by a train to the power supplied from the substation, and again referred to the circuit through a return track high voltage circuit. The circuit configuration device DC arresters, main fuse, line circuit breakers, inverter device such as a high-voltage devices. In addition, the power transmission apparatus to perform the traction motors and the traction control of the drive speed, gear couplings, laundry Archiving gear, wheel and axle, the axle box and the like. The failure mode and lethality associated performed on the results of the high-voltage device component level and the inverter circuit breakers and wiring devices lethality first grade, when powertrain is the axle boxes, wheel and axle, the driving gear has been classified as Class 1.