OCREV S.r.l. is a company known worldwide in the transformers field that manufactures transformers on 3 workshops, all located in the territory of Vicenza – Italy, for a total surface of over 13400 m².

All workshops have a Quality System certified according to ISO 9001: 2015 and the EHS System is certified according to ISO 14001:2015 and ISO 45001:2018.


OCREV manufacturing program includes:


  • Distribution oil-filled transformers from 50 up to 3150 kVA – Insulation level up to 36 kV
  • Power oil-filled transformers up to 40 MVA – Insulation level : up to 145 kV
  • Silicone liquid DC561 filled transformers
  • Cast-resin transformers up to 20 MVA – Insulation level : up to 36 kV
  • Explosion proof transformers for special plants, i.e. refineries, mines, chemical industry etc.
  • Special Units


Yearly output : over 600 transformers, about 70% of which are exported worldwide.

Test department equipped for impulse tests up to 650 kV (for transformers up to 145 kV class)


Our production range includes both standard type transformers and special units which are designed and manufactured according to the customer's specifications and requirements.