A Study on The Material Selection and Characteristic Investigation of Rotor Bar and End Ring of Induction Motor for High Speed Train

고속전철용 견인전동기의 회전자 바와 엔드링의 재질선정 및 특성고찰에 관한 연구

An inverter-driven induction motor is used as the traction motor for a high speed drive system that required safty, reliability and performance and so on. rotor bar and end ring of the traction motor are the electrical equipments which form the conductive close loop and then induce current by interaction wi th the current of stator. the materials selection of rotor bar and end ring are seriously considered in the aspects of electrical and mechanical specification and Motor slip relation to inverter. Particularly motor slip guarantee the safty and reliability of induction motor. this paper show the material selection and the determining of slip in the design of traction motor for high speed train by analyzing the specifications of material being used currently.