Fifth E444 prototype on Italian State Railways has chopper control of traction current and top speed of 200 km/hr; locomotives have Bo-Bo wheel arrangement within weight of 79 tons; motors are fully suspended with floating-ring transmission to wheels, and are designed for nominal catenary supply of 3000 v d-c; control circuit provides for 43 resistance notches while motors are in series and 21 when they are in parallel; truck frame is ring with motors supported centrally inside, featuring compact design of minimum weight; electrical braking is controlled by thyristors.
High speed electric locomotive for FS express trains
Ry Gaz
Railway Gazette ; 124 , n 9
1968
4 pages
Aufsatz (Zeitschrift)
Englisch
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