GE Dash 9
|GE Dash 9-44CW series|
GE Dash 9-44CW of the BNSF Railway # 5518
|Year of construction (s):||1993-2004|
|Axis formula :||Co'Co '|
|Length over coupling:||22.3 m|
|Service mass:||186-197 tons|
|Top speed:||120 km / h|
|Hourly output :||3,280 kW|
|Motor type:||7FDL-16, diesel V 16|
|Number of traction motors:||6th|
The General Electric Dash 9 is a series of 6-axle diesel-electric locomotives from the US locomotive manufacturer General Electric (GE). Several variants of this series were offered. These differ mainly in the engine power. The first model produced from 1993 onwards was the Dash 9-44 CW with 3280 kW (4400 SAE-PS ), the most powerful freight train locomotive manufactured by GE at the time . The Dash 9-P42DC was a 3132 kW (4200 hp) locomotive built from 1996 for passenger trains. In addition, less powerful locomotives than Dash 9-40CW were delivered to the Norfolk Southern Railway . In addition, from 1994 GE offered a variant of the Dash 9 with traction motors in AC version . These machines are referred to as the GE AC4400CW .
The vehicles are powered by diesel-electric technology . The diesel engine drives a three-phase synchronous generator, which generates the energy for the electric traction motors. First, however, the generated AC voltage is rectified, because the traction motors in this series are DC series motors. The machines are equipped with an electrical resistance brake. Here, the kinetic energy is converted into electrical energy by the traction motors and this is then converted into heat via braking resistors . As a result, the brake wear could be reduced, since the drag brake works largely wear-free.
The Dash 9 series locomotives are used by almost all major railroad companies in North America , such as the BNSF , CSX , Canadian National Railway and the Union Pacific Railroad . The Dash 9-P42DC model is a popular passenger train locomotive at Amtrak .
- Greg McDonnell: Locomotives - The modern Diesel & Electric Reference. The Boston Mills Press, Ontario, Canada 2008, ISBN 1-55046-493-0 , ISBN 978-1-55046-493-1