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RESIBLOC® Rail traction transformer

ABB’s RESIBLOC® Rail dry-type transformer is the breakthrough oil-free traction transformer. This technology has been relied upon for decades in high demanding applications such as marine vessels, offshore oil & gas, underground mining and many other extreme environments. RESIBLOC® transformers are known and utilized for their incredible strength, durability and high performance. ABB is now bringing this safe and trusted technology to the world of traction propulsion systems.

Dry-type transformers ensure complete protection of people, property and the surrounding environment. With the additional benefits of removed oil-pumps and zero chance of leakages, the RESIBLOC Rail transformer can perform nearly maintenance-free operation and 45% reduced winding losses at the same weight as traditional units.


Product scope

  • Air-cooled and oil-free
  • Environmentally friendly according to BGI 655
  • Successfully shock and vibration tested according to IEC 61373
  • Designed according to fire protection standard EN 45545
  • No risk of oil spill or leakage
  • Almost maintenance free
  • Suitable for operation in extreme environment up to -60o celcius


Why ABB ?

  • 130 years of experience in manufacturing transformers
  • Highest level of safety with significantly lower fire potenial 
  • Operating energy costs of trains reduced by up to 10%
  • CO2 emissions reduced up to 38 tons per train per year
  • Technology validation over several years and more than 20 million kilometers

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