Motorový rušeň radu 751
ZSSK T 478.1 “Bardotka” at the Bratislava Transport Museum (Bratislava, Slovakia)
The Class 751 (T 478.1 in the old ČSD numbering) is a four-axle, box-body diesel-electric locomotive with a Bo’Bo’ wheel arrangement and electric power transmission. ČKD built the locomotives from 1964 to 1971.
History
In the mid-1960s, a locomotive was needed to replace steam engines on passenger and light freight trains on non-electrified lines. When the project was assigned, it had not yet been decided whether to use electric or hydraulic power transmission, so two variants were planned: the T 478.1 with electric transmission and the T 478.2 with hydraulic transmission. Two prototypes were built in 1964 and entered trial service in 1965. The electric transmission proved itself, so development of the hydraulic version was stopped.
Rebuilds
The most significant rebuild was the conversion to Class 749, which affected only Czech Railways locomotives. The steam generator was removed and an alternator was installed to provide electric heating for passenger trains. In 1994–1995, Class 751 and Class 752 locomotives were rebuilt this way. The remaining Class 752 locomotives were renumbered as Class 751.3.
Characteristics
Manufacturer: Českomoravská Kolben Daněk (ČKD)
Country of origin: Czechoslovakia
Years of production: 1964—1971
Production: ±300 units
Length: 16,500 mm
Width: 2940 mm
Height: 4103 mm
Track gauge: 1435 mm
Power: 1102 kW (1478 HP)
Max. speed: 100 km/h
Traction force: 180 kN
See also:
