ČSD series E 407.0
| ČSD series E 407.0 | |
|---|---|
 Locomotive E 407.002
|
|
| Numbering: | E 407.001 (E 407.002) |
| Number: | 2 |
| Manufacturer: |
František Křižík and Breitfeld & Danek ( ČKD ) |
| Year of construction (s): | 1926 (1929) |
| Axis formula : | Bo 'Bo' |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 12,200 mm |
| Height: | 4,160 mm |
| Width: | 3,060 mm |
| Trunnion Distance: | 6,600 mm |
| Bogie axle base: | 2,400 mm (2,380 mm) |
| Total wheelbase: | 9,000 mm (8,980 mm) |
| Service mass: | 67.4 t (66.5 t) |
| Friction mass: | 67.4 t (66.5 t) |
| Wheel set mass : | 17 t |
| Top speed: | 35 km / h |
| Hourly output : | 208 kW (228 kW) |
| Continuous output : | 156 kW |
| Starting tractive effort: | 67.4 kN |
| Driving wheel diameter: | 1,045 mm |
| Power system : | 440 V accumulator |
| Number of traction motors: | 4th |
| Drive: | Paw camp |
The ČSD series E 407.0 was an electric locomotive of the former Czechoslovak State Railways ČSD, which was intended for shunting service in the Prague hub .
History and commitment
Even before the start of electrical operation in the Prague node, tests with battery locomotives were carried out to reduce air pollution in the tunnels around Prague main train station due to the increasing steam locomotive operation for moving work. The first such locomotive was the ČSD series E 407.001 manufactured by František Křižík and Breitfeld & Danek , which began trial service in June 1926.
In 1929 this machine got a sister locomotive E 407.002 , which had been improved in some details and was manufactured by the successor organization ČKD .
In the thirties, the production of the battery locomotives was transferred to Škoda , which in 1931 manufactured the only slightly changed ČKD predecessor as the E 417.0 . The further development of this locomotive was the E 416.0 .
The battery locomotives had the advantage that they could operate freely even on non-electrified tracks. Overall, they were very popular. Lt. According to the source, around 1953, 2/5 of all electric locomotives at ČSD battery locomotives were still .
The literature does not reveal anything about the further use of the locomotive. It can be assumed that after the Prague node was re-tensioned to 3000 V direct current around 1962, it was no longer possible to use it in an operational manner.