Electric feeding system

Product overview
Auxiliary power systems supply on-board auxiliaries such as HVAC and air generation and treatment units (AGTU) and charge batteries on trains, metros and trams. Wabtec provides power electronics used across mass transit vehicles — light-rail, high-speed, main-line and underground trains, trams, and trolleybuses. Compatible with overhead line or third-rail supplies, these systems convert input voltages up to 3,000 V and deliver 10 to 100 kVA of output power.

Product portfolio

• Auxiliary converters: Convert and regulate input voltage from overhead lines or third rails into stable power for loads such as air conditioning, ventilation and AGTU.
• Battery chargers: Charge auxiliary batteries, supply power to electronic equipment and maintain lighting during operation.

Positive energy savings
Beyond supplying power, auxiliary systems can improve overall energy efficiency of a vehicle. Wabtec offers technical solutions and a business model to help transit operators reach shared energy-saving targets and optimize configurations according to operational constraints.

Technical specifications

• Compatible vehicle types: light-rail, high-speed, main-line, underground trains, trams, trolleybuses.
• Input voltage compatibility: overhead line or third rail; conversion up to 3,000 V.
• Output power range: 10 to 100 kVA.
• Main functions: regulated auxiliary power supply (HVAC, ventilation), battery charging, powering electronics, lighting during operation.
• Auxiliary converters: switch and regulate input voltage into constant, regulated power for multiple on-board loads.
• Battery chargers: charge batteries and supply auxiliary electronics and lighting.
• Energy optimization: solutions and commercial model available to meet shared energy-saving targets and adapt configurations to operational constraints.