SJ X2
| X2 | |
|---|---|
|
|
| Manufacturer |
Asea Brown Boveri Adtranz |
| Built at | Västerås (ABB, electrical part), Kalmar (mechanical part) |
| Family name | X2000 (only one trainset exported) |
| Constructed | 1989 - 1998 |
| Entered service | 1989 |
| Number built | 43 (44 with Xinshisu) |
| Formation | 1 locomotive & 5 or 6 coaches |
| Fleet numbers | 2001 - 2043 |
| Capacity | Seated passengers: 76 (business class saloon) 51 (first class saloon) |
| Operator(s) | SJ |
| Specifications | |
| Car body construction | Corrugated stainless steel |
| Car length | Locomotive: 17,750 mm (58 ft 2 7⁄8 in) Coach, over couplers: 24,950 mm (81 ft 10 1⁄4 in) Coach body: 24,400 mm (80 ft 5⁄8 in) |
| Width | 3,050 mm (10 ft 0 in) |
| Height | 3,814 mm (12 ft 6 1⁄8 in) |
| Floor height | Coach: 1,264 mm (49 3⁄4 in) |
| Wheel diameter | Locomotive: 1,100 mm (43.31 in) Coach: 880 mm (34.65 in) |
| Wheelbase | Bogie 2,900 mm (114.17 in) bogie centres of locomotive 8,975 mm (29 ft 5 3⁄8 in) bogie centers of coaches 17,700 mm (58 ft 7⁄8 in) |
| Maximum speed | 200 km/h (120 mph) (in service) |
| Weight | Locomotive: 73 t (72 long tons; 80 short tons) coach, tare: 47 t (46 long tons; 52 short tons) |
| Axle load | 17.5 t (17.2 long tons; 19.3 short tons) |
| Power output | 3,260 kW (4,370 hp) |
| Tractive effort | Locomotive: 160 kN (36,000 lbf) max. 107 kN (24,000 lbf) cont. @108 km/h (67 mph) 110 kN (25,000 lbf) braking from 130 km/h (81 mph) to 0 km/h (0 mph) |
| Train heating | Yes |
| Electric system(s) |
15 kV 16 2⁄3 Hz AC catenary 25 kV 50 Hz AC catenary |
| Current collection method | Pantograph |
| Braking system(s) | Loco: brake shoe on rim (air) and regenerative brake Coach: disc brake and magnetic brake |
| Coupling system | Automatic (which type?) |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) |
X2 is the Swedish high speed train system operated by the operator SJ (Swedish Railways) under the SJ 2000 brand name. It has a top commercial speed of 200 km/h (120 mph), but has reached 276 km/h (171 mph) in a test. The reason the X2 was chosen was that Sweden (like most other countries) has very curved railways, and not enough traffic to justify building special high-speed railway lines (at least before 1990). As a result, a Swedish tilting train had to be developed. A tilting train provided the advantages of high speed and comfort for the passengers, as tilting trains can run through sharp (short radius or tight) curves up to 15% faster than non-tilting trains. The X2 was designed and built by Asea (later ABB Asea Brown Boveri, Adtranz ABB Daimler Benz Transportation and now Bombardier Transportation). The drive unit for the X2 is designated as a multiple unit although since the drive unit does not carry any passengers it should be considered as a locomotive.
SJ ordered 20 trainsets in August 1986 and planned to order further 30 trainsets. However, this figure was later reduced to only 43 trainsets.
The X2 was designed for old main lines with tight curves and with continuously welded rails (the train has a maximum axle load of 17 tonnes (16.7 long tons; 18.7 short tons), which causes large forces on the track). However, since 1990 a lot of new high speed lines have been constructed in Sweden, both upgraded lines and new lines. These upgraded or new lines always have ATC, continuously welded rails on concrete sleepers and no crossings with road and rail at the same level. The tilting function is not used on these lines.
The max power continuous output of the locomotive is 3,260 kW (4,370 hp), which is comparatively low for a fast train. It also enabled SJ to say that it does not consume more power at 200 km/h (120 mph) than older Rc- locomotive hauled trains at 130 km/h (81 mph).
The X2 trains have mostly run the X 2000 service level, but have periodically been used for Linx traffic as well as regional services, for which fewer coaches were used to improve acceleration.
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Wikipedia