Product description: DF7D diesel locomotive
Product class: diesel locomotive
Introduction: DD7D locomotive is AC-DC transmission 6-axle diesel locomotive which can undertake passenger and freight traction transport on trunk lines, secondary trunk lines in mountain areas and railways in extremely cold areas. The locomotive is divided into three types: 1. mountain type double heading passenger and freight diesel locomotive; 2. cold-proof type double heading passenger and freight diesel locomotive; 3. standard type double-cab passenger and freight diesel locomotive. DF7D diesel locomotive is equipped with 12V240/275 series diesel engine and its main components and parts are interchangeable with 16V240/275 series diesel engine of current trunk-line prime type passenger and freight diesel locomotive. DF7D diesel locomotive possesses excellent economy and advanced technology. Equipped with specially designed bogie, the mountain type locomotive has good dynamic curve negotiation performance upon service on small curves in mountainous areas. Equipped with reinforced cold-proof facilities, the cold-proof type locomotive is very applicable to extremely cold areas in the northeast.
Technical parameters:
Type: mountain type, cold-proof type and standard type
Purpose: passenger and freight transport
Gauge/mm: 1,435
Transmission mode: electric transmission
Axle arrangement: C0-C0
Maximum service power:1,840kW
Maximum speed: 100km/h
Continuous speed: 16km/h
Starting tractive effort: 428 kN
Continuous tractive effort: 308 kN
Minimum radius of curvature negotiable: 100m
Axle load: 2,223t
Service weight: 132,138t
Resistance braking power at the wheel rim: not less than 2,300kW
Others: single cab, double-cab in coupled operation