What is a traction motor This topic contains 3 replies, has 2 voices, and was last updated by John C 1 year, 1 month ago. Author Posts June 6, 2017 at 10:52 am #9907 Danny JacobsParticipant Hi what is a traction motor June 6, 2017 at 11:08 am #9908 John CGalco Representative Hello Danny, thanks for asking Galco. A Traction motor is used for driving the wheels of a locomotive or other rail system equipment like a crane that will have Bridge and Trolley Traction motors driving the wheels for Bridge and Trolley motion. June 6, 2017 at 11:09 am #9909 Danny JacobsParticipant Are these motor AC or DC June 6, 2017 at 11:16 am #9910 John CGalco Representative They can be both actually, generally the older locomotives use DC series wound motors for very high torque. Later versions of locomotives use 3 Phase induction motors for driving the wheels. Author Posts You must be logged in to reply to this topic.