The project specification sets the requirements
In addition to power and voltage ratings, specify the vector group, cooling type, site conditions and required tests. Two transformers with the same power rating may not be directly interchangeable.

ROSANA / CRITICAL SOURCING
Connecting a new facility to the grid or expanding existing capacity requires the right equipment for the project. Rosana assesses sourcing for transformers, switchgear and connection equipment against the technical specification, alongside lead times and shipping terms.
Prepare a technical requestProduct catalogue
Power connections, capacity expansion and grid continuity.
The products below define the scope of enquiries we assess; they are not a current stock list. Their inclusion does not imply that every product is scarce in every region.
In addition to power and voltage ratings, specify the vector group, cooling type, site conditions and required tests. Two transformers with the same power rating may not be directly interchangeable.
Manufacturing, testing, transport and site delivery are separate stages. Dimensions, weight, accessories and the point of acceptance are clarified so that quotations can be compared on the same basis.
Include in your enquiry
Yes. Both options can be assessed if the accepted technical tolerances are specified. A product reported as being in stock must still be checked for project compatibility and its actual delivery date.
Equipment supply does not automatically include these services. If installation, site testing or plant construction work is required, it should be defined as a separate scope, with responsibilities clarified at the quotation stage.
We make no firm stock, price or delivery commitments until availability, product authenticity, origin, quality documentation and delivery terms have been verified. Supply is subject to applicable trade rules, required authorisations and an assessment of end use.
Brand and model names are used to identify products; they do not indicate authorised reseller status, a partnership or available stock. Images are illustrative.