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The State Key Laboratory of Traction Power (TPL) is a state key open research laboratory which is affiliated to the Chinese Ministry of Education and attached to Southwest Jiaotong University. Preparations were started in 1989 for the construction of TPL. The first-stage construction was finished in 1993 and TPL started to carry out research and tests in 1994. In 1996 TPL was officially approved by the central government and was evaluated as the first-class State Key Laboratory twice in 2003 and 2008 respectively.

TPL’s objectives are to conduct high level research in both science and technology to meet the demands of China railway modernization, strengthen the fundamental research and its application, and develop leading scholars and experts in the field of railway vehicle systems.