Deutsche Bahn

On-board electrical systems

On-board power supply converters, transformers, inductors, train bus-bars, etc.

We can provide the assistance you need to address your on-board electrical systems in vehicles and develop optimal solutions.

We offer rail companies, repair and maintenance facilities as well as vehicle manufacturers solid engineering services in the field of electrical propulsion technology – independently and in line with your requirements:

  • For servicing your rail vehicles: Our comprehensive knowledge and holistic approach to vehicles help to avoid vehicle downtime and expensive consequential damage. By evaluating data and leveraging our many years of experience, we can identify components that require attention and develop appropriate alternatives.
  • For accompanying and consulting during the procurement process: By specifically defining and accurately describing projects, component properties and services, we will work together with you to create effective concepts and realistic requirements. We can therefore safeguard the implementation of these concepts and requirements when carrying out design reviews, tests and acceptance activities.
  • With tests, damage analyses and expert appraisals: In the event of a damage incident, we examine the affected assemblies, clarify failure causes and devise rectification measures for you to avoid future assembly downtime and damage.

We coordinate potential areas of economical and technical improvement and assist you in implementation

  • When it comes to the energy consumption of the fleet: Our solid, well-established know-how in electrical subsystems on board railway vehicles allows us to identify targeted areas in which energy savings can be realised (e.g. by monitoring consumption) and help you achieve these savings. In some cases, a great deal of energy can be saved simply by implementing basic operative measures.
  • When it comes to qualifying suppliers: Different objectives must be coordinated to avoid delivery bottlenecks and costly inventory levels. We can help you select suitable suppliers, define cost-effective procedural approaches, carry out quality assurance checks and accept contracted work and deliveries.
  • When it comes to maintaining, repairing and modernising: We can leverage the many decades of expert knowledge we have acquired in catering to a wide range of vehicle types employing various different electrotechnical technologies. This, in turn, allows us to answer all of your questions, define and draft maintenance guidelines and coordinate individual

Our fields of expertise

Voltage levels, e.g.:

  • UIC train bus-bar, 1 kV AC to 3 kV DC
  • 3 AC 400–480 V, 50–60 Hz, 1 AC 230 V 50–60 Hz
  • 24 V DC to 110 V DC

Components, e.g.:

  • On-board power supply converters, inverters, three-phase converters
  • Battery chargers, on-board power supply batteries, on-board power supply generators
  • Transformers
  • Inductors
  • Sine wave filters
  • Voltage selectors
  • Disconnection and earthing equipment
  • Train bus-bars (AC and DC)
  • Cooling equipment (for on-board power supply units)

Our equipment

If required, we will make use of our test laboratories, such as the laboratories for battery and environmental control system technology, to address your specific concerns.

Our references (selection)

More information is available here.