Traction Transformers
Innovative and efficient solutions for the traction sector
Traction transformers play a pivotal role in the electric system, directly influencing the efficiency, safety and performances of the rail operations. These specialized transformers are responsible for adapting the electrical energy from the power supply system to the specific voltage and current levels required by traction motors, enabling the smooth and reliable movement of trains across various networks.
TMC is at the forefront of this technology, offering a comprehensive range of dry-type traction transformers tailored for diverse railway applications. Whether it's fast trains that travel long distances, everyday commuter and regional trains, powerful locomotives, trams that move through cities, or metro systems that run on AC power, TMC delivers solutions that meet both market demands and customer needs.
TMC dry type transformers are available in two primary insulation technologies: cast resin and vacuum pressure impregnation (VPI). Each design offers distinct advantages depending on the operational environment. cast resin transformers, for instance, are known for their high mechanical strength and fire resistance, making them ideal for challenging environments. VPI transformers, on the other hand, offer excellent thermal conductivity and are often lighter and more compact, allowing for flexible integration into space-constrained vehicle designs.
Moreover, TMC's transformers are engineered to accommodate various power ratings, sizes, and weight constraints, ensuring optimal performance across different train platforms.
TMC Transformers has successfully carried out short-circuit tests on traction transformers for 12 pulse rectifier systems and power ratings of 3880 and 4400kVA, with 200kV BIL insulation levels.
The transformers must be designed to take into account the power needs and duty cycles of each substation without exceeding the temperature limits, which would otherwise degrade the insulation. The H-ART180° technology developed by TMC improves the performance of the transformer and its expected lifetime.
