Gröna Tåget
Swedish Transport Adm.
Strategic Development
781 89  Borlänge

Tel: +46(0)771921921


Test train facts
The test train is (or is planned to be) equipped with
Where are the tests performed?

Summer 2006
Winter 2006/2007
Summer 2007


Test train facts
An ordinary Regina train was used for testing Gröna Tåget. Besides testing new technical solutions, and bogies in particular, the train is being remodelled for better performance in order to run at higher speeds with due regard to performance and safety.

For testing, a modified so-called Regina train is used. This is a two-car electrical multiple unit. Besides testing new technical solutions, the train has higher performance for running at increased speeds – the current goal is 250 km/h, taking account of necessary margins.

With modifications, it will be possible for Regina to run at 250 km/h and probably, in future, as a high speed train. Regina is designed for the Nordic climate and Nordic tracks. The train is also equipped with ”track-friendly” bogies for increased comfort and less wear and tear on winding tracks.

The test train is (or is planned to be) equipped with
- Traction motors on all 8 axles, with necessary converters
- Motor reduction gears for higher speeds
- Speedometers and pacesetters for speeds up to 300 km/h
- Pantograph tops for higher speeds on existing catenary.
- Adaptation for 16 kV voltages in the mains supply against the normal 15 kV voltages.
- Track-friendly bogies for improved running stability as well as low track forces and wheel-rail wear.
- Brake pads for higher temperatures and speed
- Bogie fairings for reduced external noise and improved aerodynamics.

Where are the tests performed?
High-speed tests are run on the lines between Skövde - Töreboda and Enköping – Västerås. South of Gävle, the train is run at a maximum curving speed in wide (large radius) curves. West and south of Sundsvall and southwest of Stockholm, the train is run in narrower curves.

Summer 2006
On 26 July 2006, a new speed record was broken for trains in Sweden, during a test run between Skövde and Töreboda. The train reached 281 km/h, breaking the old record of 276-km/h by five kilometres per hour.

During a test run on 28th July 2006, the vehicle reached a maximum speed of 281 km/h, 5 km/h faster than the previous Swedish speed record. This record test was made on a track having the maximum allowed geometrical tolerances for 200 km/h. In addition, the catenary (i.e. the overhead contact cable) had a minimum standard for 200 km/h.


Another series of tests was carried out to ascertain the vehicle properties of Regina 250, during which important information was gathered. During the test period, several vehicle properties were monitored and measured.
- Running stability (i.e. absence of hunting)
- Lateral and vertical track forces (with frequency content up to 140 Hz)
- Forces and motions on pantograph
- External noise – influence of bogie skirts and low noise barriers
Internal noise and vibration - Passenger comfort evaluations
- Air flow under the train
- Comfort
- Curves
- High speeds
- Bogie fairings for reduced external noise and improved aerodynamics
- Aerodynamics and pressure variations in tunnels

Winter 2006/2007
During February 2007 the train will be tested during winter conditions (i.e., low temperatures, snow, ice, etc) in various parts of Sweden, in part, at speeds of around 250 km/h. Ballast projection, in particular, and snow accumulation, will be tested.  

Summer 2007
Numerous high-speed tests will be carried out during the summer of 2007.

High-speed tests and curving tests will continue. Presently, novel features, such as mechatronic bogies with active lateral suspension and radial active steering, are about to be tested. This is to ensure better comfort at high, curving speeds, and to further reduce wheel-rail wear on narrow curves. This means that wheel axels, with the assistance of modern technology, adjust themselves in order to achieve minimal track wear and a stable passage.This is possibly the first time such systems will be tested at high speeds and on ordinary tracks.

Further technical solutions for bogies and damping /suspension will also be tested in order to increase comfort in combination with gentle wheel/rail contact.