More than 15,000 traction transformers in operation!

SETRANS HOLDING offer a complete range of on-board traction transformersdedicated to AC, AC/DC and DC feeding networks and designed to equip freight & passenger locomotives, high speed and intercity trains.

All our transformers are completely customizable and optimized to answer individual customer requirements:

Solutions from the inductor box for DC application to complete transformer packages for AC/DC application
  • Under frame
  • In power car
  • Roof mounted
Modular packages
  • AC
  • AC/DC
  • DC
  • Complete packages AC, DC & Auxiliaries
Power range up to 14MVA
Power supply of up to 8 traction motors
Up to 4 different input voltages (25kV, 15kV 16⅔Hz, 3kV, 1,5kV)
Complete solution with  up to 3 auxiliary windings
Wide temperature class (A to H)


At Setrans Holding, we know that final users of our transformers are looking for optimized solutions combining performance and a maximum availability in operation.

This is why we take benefit of our experience coupled to the most modern design tools to en sure a transformer fully optimized to the future train route and environment.


Also windows client for controlling GNSS Modules.