3000 V GROUP E656 DC ELECTRIC LOCOMOTIVES

LE LOCOMOTIVE ELETTRICHE A CORRENTE CONTINUA 3.000 VOL GRUPPO E 656

The 3,000 volt direct current electric locomotives group E656 which have recently been brought into service on the Italian network (at the end of May 1977, 48 locomotives were in service), are the series units having the highest installed power on the Italian State Railways. These locomotives derive from the E 645 and E 646 already in service; they have the same motors, which, however, have been constructed with insulation in class F and H, and have a greater ventilation, for which the power of each motor reaches the one-hour rating of 400 kW. The total power of the locomotives has thus increased from the 4,320 kW. rating of the E 645 and E 646 models to 4,800 kW rating of the E 656. The E 656 locomotives can reach the speed of 160 km per hour, for which they are used for heavy passenger trains at higher speeds, as compared with the E 646, on the main electrified lines. The number of units ordered is 211, which thus will represent, together with the E 444 and the already mentioned E 646 locomotives, a total of 532 locomotives which will make possible the running of all the more important passenger trains. A description is given of the main characteristics of the E 656 locomotives, and an illustration is also given of the variations as compared with the E 645 and E 646 locomotives, with particular reference to the electrical equipment of new design, to the traction, control and block circuits, the auxiliary equipment, and the pneumatic circuit.

  • Corporate Authors:

    Collegio Ingegneri Ferroviari Italiani

    Piazza Croce Rossa
    Rome,   Italy 
  • Authors:
    • Masi, E
    • Mercatali, U
  • Publication Date: 1977-7

Language

  • Italian

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00174039
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: May 3 1978 12:00AM