| Abstract |
A fleet of 46 dual-voltage Locomotives for AC and DC lines is currently being built. The locomotive concept and in particular the traction equipment is described in this paper. The mechanical design is detennined on one hand by the reduced BR gauge, compared with the VIC gauge, and on the other hand by fire safety requirements within the Channel Tunnel. The electrical design is dictated by the two basically different supply systems: 25 kV / 50 Hz and 750V DC, drawn from a third rail. Especially the fact that a high power locomotive had to be fed from a mass transit low voltage supply system, resulting in high line currents, required several special features to be built in power and control electronics. Further very restrictive interference requirements for various different signalling systems had to be met. |
