Innovative direct drives using permanent-magnet technology
Less space, lower installation and maintenance costs, quieter operation and efficiencies that are between 1 and 3 % higher: When compared to conventional solutions with gear units, these innovative direct drives utilizing permanent-magnet motors offer a whole raft of advantages. Thanks to the smaller dimensions, they can be fully integrated into the bogie and do not require gear unit, couplings or their own bearings. Instead, they use the wheelset bearings that are being used anyway. The Syntegra traction unit is a special highlight of the Siemens portfolio. Syntegra is used for subways and suburban railways. Syntegra sets standards when it comes to cost-effectiveness and environmental compatibility. In 2007, it won the “Intelligence for traffic and logistics” innovation award. The fully encapsulated traction motor protects the winding against dirt and moisture – for maintenance-free operation and a very long service life.