Bombardier Transportation has completed testing of their Primove catenary-free power system on rail lines in Germany, according to Railway Gazette:
Primove uses cables between the rails to produce magnetic fields which induce electric current for traction power in pick-up coils mounted underneath the vehicle.
The tests were carried out using a modified Bombardier low-floor tram. The Primove 200 kHz induction loops were installed on an 800 m spur line which is only used in public service during events at the city’s exhibition centre.
There are numerous benefits to the Primove design, according to EcoFriend:
The PRIMOVE is a unique technology that not only makes trams more energy efficient, but also reduces visual pollution created by overhead transmission lines. The technology can be incorporated in a wide range of vehicles from trams to light-rail vehicles. It also allows trams to operate catenary-free over varying distances, everywhere, including underground lines. Moreover, the PRIMOVE technology works on induction, hence making sure that there is no wear and tear of components, which reduces maintenance costs.
The technology is based on contactless inductive power transfer, which is coupled with the company’s MITRAC Energy Saving system, which stores energy gained during operation and braking. This system uses this energy to optimize power supply, thereby saving energy. It also ensures maximum vehicle performance and continuous operation of the vehicle just like conventional catenary systems.