This article deals about the differences between electric engines and the most appropriate forms for particular tasks.
Basic design of electric engines
Types
Electric motors can be divided into 3 main types: alternating current (AC) motors, direct current (DC) motors, and universal motors. An AC electric motor will not run when supplied with DC current, and a DC motor will not run on AC current; a universal motor will however run on either AC or DC current.
- http://en.wikipedia.org/wiki/Motor_controller
- http://en.wikipedia.org/wiki/Electric_motor#Categorization_of_electric_motors
3D models
- R160A traction motor ? http://en.wikipedia.org/wiki/R160_(New_York_City_Subway_car)#Features