ČSD series 731
| ČSD series 731 ČD / ZSSK series 731 |
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|---|---|
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| Numbering: | 731.001-062 ČSD / ČD / ZSSK |
| Number: | 62 |
| Manufacturer: | ČKD |
| Year of construction (s): | 1988, 1991-1992 |
| Axis formula : | Bo'Bo ' |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 15,280 mm |
| Trunnion Distance: | 7,200 mm |
| Bogie axle base: | 2,400 mm |
| Smallest bef. Radius: | 80 m |
| Service mass: | 68 t |
| Friction mass: | 68 t |
| Wheel set mass : | 17 t |
| Top speed: | 80 km / h |
| Installed capacity: | 600 kW |
| Continuous tensile force: | 170 kN |
| Driving wheel diameter: | 1,000 mm |
| Motor type: | ČKD K 6 S 230 DR |
| Rated speed: | 1,150 rpm |
| Power transmission: | diesel-electric |
| Tank capacity: | 4,000 l |
| Number of traction motors: | 4th |
| Drive: | diesel-electric |
| Brake: | DAKO |
| Train heating: | no |
The ČSD class 731 (originally planned as: class T 457.1 ) is a diesel-electric shunting locomotive of the former Czechoslovak State Railways (ČSD).
history
The machines were created as a derivative and technical improvement of the ČSD series T 457.0 . Two prototypes were built in 1988, series production took place in 1991–1992 in two series of 30 pieces each.
technical features
The basic concept of the locomotive corresponds to that of the ČSD series T 457.0 . The length over the buffers and the external design of the vehicles differ. The framework has been changed slightly. In addition, the lower top lights are attached to the frame in separate housings, the top top light is integrated into the locomotive body .
The electrical part also corresponds to the previous series. The electric brake was revised again, which contributed to an improvement of the machine.
commitment
It is a machine for medium-heavy shunting and light road service. The machines are popular, especially thanks to their good traction properties. Its electrodynamic brake is also better than the previous version. The performance is a bit too low for operation on the road.
See also
- List of the ČD locomotive and multiple unit series
- List of locomotive and multiple unit series of the ČSD
- List of locomotive and multiple unit series of the ŽSR
