QR 3700
| QR 3700 | |
|---|---|
 |
|
| Numbering: | 3701-3763 |
| Number: | 63 |
| Year of construction (s): | from 2007 |
| Axis formula : | Bo'Bo'Bo ' |
| Gauge : | 1067 mm ( cape track ) |
| Length over coupling: | 20,369 mm |
| Length: | 19,380 mm |
| Height: | 3,900 mm |
| Width: | 2,720 mm |
| Trunnion Distance: | 6,600 mm |
| Service mass: | 126 t |
| Top speed: | 80 km / h prepared: 100 km / h |
| Hourly output : | 4,000 kW |
| Continuous output : | 4,000 kW |
| Starting tractive effort: | 500 kN |
| Driving wheel diameter: | 1067 mm |
| Power system : | 25 kV 50 Hz ~ |
| Number of traction motors: | 6th |
| Drive: | Siemens 1TB 2KF2821-2EA00 |
| Control: | Sibas 32 |
| Coupling type: | Janney clutch |
QR 3700 refers to a series of electric locomotives of the Australian railway company Queensland Rail (QR).
history
The QR 3700 have been converted from the QR 3100 and QR 3200 series . The modernization was carried out by the United Group and Siemens . Where previously five locomotives were required for a train, there are now only three.
The locomotive was also the model for a new locomotive built at Siemens. This was equipped with almost the same electrical engineering. This new building is classified under the series designation QR 3800 .
The conversion included the following changes:
- Replacement of traction equipment
- Mechanics of the car body and the bogies
- Increase in service mass
- Installation of screens for operational and diagnostic information
- Braking system
- Elimination of a driver's cab
- Driver's cab modernization
technical features
The locomotives have six driving axles that are located in three bogies.
The locomotive is equipped with a single-arm pantograph from Austbreck. The high-voltage transformer and the main switch are supplied via a roof line. The roof duct through which the connection to the main transformer is established is located behind a surge arrester. The upper voltage of 25 kV is reduced to 990 V.
The converter consists of three independent converters. These each supply the motors of a bogie and an auxiliary converter. Each converter has two four-quadrant controllers.
commitment
The locomotives are used in front of coal trains in the Goonyella and Blackwater networks. In the Goonyella network, three locomotives each transport up to 120 wagons, each weighing 106 t. This results in a wagon train mass of 12,720 tons with a total mass of 13,098 tons. Up to 100 wagons with 104 t each are used in the Blackwater network, which results in a train mass of 10,400 t.
Web links
- QR Locomotives, English ( Memento from January 23, 2010 in the Internet Archive )