A Study on Mechanical Characteristics for Induction Motor of Rolling Stock

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. In this research, using the measurement system, the temperature characteristics considering speed of electric traction motor, operating time and month was measured and investigated