SJ X2

X2
X2 train used by SJ AB of Sweden
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
Operator	SJ
Specifications
Maximum speed	200 km/h (in service)
Power supply	Pantograph
Electric system(s)	15 kV 16⅔ Hz AC
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 X 2000 brand name. It has a top commercial speed of 200 km/h, but has reached 276 km/h 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 narrow 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.

Technical

The X2 was designed for old main lines with narrow curves and with continuously welded rails (the train has a maximum axle load of 17 tonnes, which causes large forces on the track). However, since 1990 a lot of new high speed lines have been constructed in Sweden, both upgrades 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 3.200 kW, 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 than older Rc- locomotive hauled trains at 130 km/h.

Operation

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.

Exports

At the beginning, SJ believed there would be enormous numbers of exported X2-trains. Norway, Finland, Germany, Austria, France, China, Australia, Portugal and the US were mentioned as candidates. Only one X2-trainset was exported (China).

An X2 train was also loaned to the American rail operator Amtrak in 1992-93 and to the Australian operator Countrylink in 1995 for evaluation, but neither operator bought any X2- trains.

The X2 was also tested in Norway and Germany.

Technical data X2 locomotive

General
Operator	SJ
Manufacturing year	1989-1998
Number of manuf.	43
Supplier mechanical part	KVAB
Supplier electrical part	Asea/ABB
Axle arr	Bo-Bo
Weight	70,0 t
Axle load	17,5 t
Max tractive eff	160 kN
Max speed	210 km/h
Body
Length	17.750 mm
Bogie distance	8.975 mm
Height over pantograph	xxx mm
Body width	x.xxx mm
Coupling	automatic
Surface	corrugated stainless steel
Colour	silver
Bogies
Track width	1.435 mm
Axle distance	2.900 mm
Wheel diameter,new	1.100 mm
Primary suspension	rubber pad
Secondary suspension	coil
Brake	shoe, regenerative
Bogie Weight	NA
Min hor radius	NA
Electrical equipment
Catenary voltage	15 kV
Catenary frequency	16 2/3 Hz
Max cont power	3,26 MW
Traction motor	MJA 385-2
Max power trainheating	360 kW

Technical data X2 passenger coaches

	UB2	UA2
General
Operator	SJ	SJ
Type of coach	business class saloon	first class saloon
Tillverkare	KVAB, Asea	KVAB, Asea
Manufact year	1989-xxxx	1989-xxxx
Tare Weight	47 t	47 t
Manufact country	Sweden	Sweden
Number of manufact	NA	NA
Max allow. speed	200 km/h	200 km/h
Body
Length	24.950 mm	24.950 mm
Body length	24.400 mm	24.400 mm
Bogie distance	17.700 mm	17.700 mm
Body height	3.814 mm	3.814 mm
Body width	3.050 mm	3.050 mm
Floor height	1.264 mm	1.264 mm
Body material	stainless steel	stainless steel
Type of coupling	short	short
Colour	silver	silver
Type of entrance door	slide door, plug	slide door, plug
Bogies
Bogie Mark	NA	NA
Track gauge	1.435 mm	1.435 mm
Axle distance	2.900 mm	2.900 mm
Wheel diameter- new	880 mm	880 mm
Primary suspension	rubber pad	rubber pad
Secondary suspension	air	air
Brake	disk- & magnetic rail	disk- & magnetic rail
No of disks per axle	2	2
Bogie weight	NA	NA
Electrical equipment
Train heating voltage	3 x 380 V 50 Hz	3 x 380 V 50 Hz
No of phases	3-phase	3-phase
Air conditioning	yes	yes
Interior
Floor plan	saloon	saloon
No of seats	76 seats	51 seats
Seats abreast	2 + 2	2 + 1
Seat distance	95 cm	105 cm

See also

• List of high speed trains
• X 2000