DF7G diesel shunting locomotive

 

DF7G diesel shunting locomotive is mainly used for marshalling and shunting operations in large and medium sized marshalling yards, and large industrial and mining companies, as well as district transfer. It is equipped with 12V240ZJ diesel engine, with AC-DC as main transmission and AC as auxiliary transmission. The main alternator employs brushless excitation and axle-hung rolling bearing structure is used for motor assembly. The locomotive employs microcomputer control system and dynamic braking equipment.
Performance characteristics: this locomotive is improved on the basis of DF5 locomotive in terms of generalization, serialization, modularization and standardization. Alternating current technology is employed in auxiliary system. Radiation fans and traction motor blowers are driven by AC motors. Color liquid crystal display is used in control system, which has the functions of data presentation, fault diagnosis, inspection and recording.

Basic DF7G Locomotive Parameters 

marshalling and shunting operations in large and medium sized marshalling yards, and large industrial and mining companies

Purpose

AC-DC transmission

Transmission mode

Co-Co

Axle arrangement

1435mm

                     Gage

                                                 1050mm

Wheel diameter

19400 mm ×3250mm×4753mm

                  Locomotive configuration

                                                        100m

Minimum curvature radius negotiated

138 ±3t

Locomotive weight with full service

23 ±3t

Axle load

2000kW

Service power of diesel engine

                                                      100km/h

                     Maximum speed

95km/h

Maximum constant power speed

17.6km/h

Continuous speed

                                                 435kN

Maximum starting tractive effort

                                                 317kN

Continuous tractive effort

6000L 

                  Fuel tank capacity

                                                        850kg

Total oil volume

1100kg

                         Total water volume

                                                    500kg

                  Total sand volume

TB/T1594-96 coupler (top operation)

                   Coupler type

880±10mm

Coupler center line height

12V240ZJ

Diesel engine model


 
Sat , 24 Feb 2018