TEMPERATURE CHARACTERISTICS FOR MAIN TRANSFORMER OF ROLLING STOCK

초록

The transformer on KTX is an electric equipment that supplies electric power to each device. We examined the change and characteristics of temperature of the transformer in each running time. For these work, we installed temperature sensors, and analyzed the temperature characteristics of the transformer according to various conditions with the measuring system and the analysis program. By this performance, we could know that the oil temperatures before and after cooling were constant regardless of running time. Also, the maximum temperature was about 100℃, and we could verify that the temperature exists within the standard limit 130℃."