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A ZQDR-410 traction motor (the large, dark component on the axle with small ventilation holes) A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric or hydrogen vehicles, or electric multiple unit trains.
Electric drives manufacturer, including synchronous traction motors for electrical or diesel/electrical locomotives, multiple units, trams and working vehicle with main and auxiliary operating generators and their regulating systems. Ashwoods Electric Motors Manufacturer of Axial Flux and Interior Permanent Magnet Motors. LHP Motors
Model traction engines, powered by steam, are manufactured by several companies, notably Mamod and Wilesco. Larger scale model engines are popular subjects for model engineers to construct, either as a supplied kit of parts, or machined from raw materials. A small number of full size traction engines have been built including a Case 150. [40]
Each DC bus powers two traction converters, with each traction inverter powering a separate traction motor. [ 45 ] [ 46 ] The locomotive uses four 1,300 kW (1,700 hp) MITRAC DR 3700 F [ note 1 ] fully suspended, bogie mounted traction drives to reduce unsprung mass .
The locomotives had a motor-generator set with a synchronous AC motor and DC generator, which supplied the Westinghouse 356-A traction motors geared to each driving axle. They were equipped for multiple-unit control and regenerative braking.
The traction motors were six-pole field, 400 volts, 25 Hz rated each at 385 hp (287 kW). The motors were frame-mounted using quill drives to the sprung driving wheels, providing a flexible suspension system across a relatively-long locomotive frame, which allowed full wheel weight to rest on the rail for good traction regardless of track condition.
The facility also manufactured components such as locomotive underframes, traction motors, truck assemblies, and locomotive equipment racks. The rate of production was approximately one locomotive completed per day. EMD London was ISO 9001:2000 Certified for Quality and ISO 14001 Certified for Environmental Management.
To achieve a higher speed, locomotives began using wheel arrangements such as 2'Do2' (AAR: 2-Do-2), with the SNCF Class 2D2 5500 [1] This used leading (and trailing) pony trucks or bogies to provide stability at high speed, with individual traction motors for each axle, avoiding the weight of the coupling rods.