Efacec always favoured technological development as a main factor to ensure competitiveness and high quality of its transformers.

An integrated Management system of all the required information for the design and manufacture of Power Transformers has been developed by Efacec.

Power Transformers 

• SHELL Transformer | 1500 MVA; 525 kV (BIL 1675 kV)
• CORE Transformer | 350 MVA; 400 kV (BIL 1425 kV) 

Mobile Substations 

• Core ou Shell | 60 MVA; 245 kV (BIL1050kV)

Distribution Transformers 

• Hermetic, mineral oil immersed three-phase distribution transformers from 50 up to 6300 kVA, up to 36 kV for indoor or outdoor installation.
• Cast resin dry type three-phase distribution transformers from 250 to 2500
•  kVA, up to 36 kV, comercially know as PowerCast.
• "Pole mounted" distribution transformers from 50 up to 100 kVA, up to 36 kV for indoor or outdoor installation.