A STUDY ON THE MECHANICAL CHARACTERISTICS OF TRACTION MOTOR FOR RAILWAY VEHICLE

초록

High-speed railway vehicle has many electric devices such as main transformer, motor block and traction motor. As the on-board electric devices determine the performances of vehicles, production of reliable devices is important. To keep the reliability of devices constant, management of temperature characteristics of the on-board devices is crucial. Because temperature has a serious effect on failures of the components of the devices, its measurement is the first step for good management. In the previous testing methods for measuring the temperature characteristics of electric devices, measurement was conducted only once and continuous measuring was impossible. So, to make clear the effect of temperature on the electric devices was very difficult. A new measuring system developed in this study makes possible individual or simultaneous measurement of temperature of each device. So time and cost saving during designing and forming the system was possible. First of all, because continuous observation of the characteristics of each electric device was possible, the temperature characteristics around each device at the various conditions could be verified. In this research, using the measuring system, the temperature characteristics considering speed of electric traction motor, operating time and month was measured and investigated."