Caterpillar Inc. on Aug. 31 marked the 100th anniversary of EMD®. Founded as Electro-Motive Engineering Corporation, EMD is now a product brand of Progress Rail, a Caterpillar company. (Courtesy of ...
The first locomotive to successfully use an AC (alternating current) three-phase asynchronous traction motor drive system was the German DE2500 diesel-electric in 1971, built by Henschel-BBC. DB ...