On-shore and off-shore design
In wind applications, the characteristics of the transformer depend on the nature of the project. Wind farms on-shore and off-shore will require different power levels.
On-shore: 4.0 - 10MVA
Off shore: 10.0 - 20.0MVA for all types, for installation in nacelles and towers, with forced cooling oil/air, high temperature materials; 6.0 - 10.0 MVA with forced cooling oil/water, massive tank for highest mechanical loads, and for installation in the nacelle.
The Fluid-immersed distribution transformers REN has been subjected to numerous tests according to international standards to ensure maximum capacity and longevity. This includes extensive internal and external programs to test its suitability,
Such as successful testing of short-circuit and vibration stability, highest corrosion, heat run tests as well as salt spray tests for components for offshore application.
1 transformer, 3 possible locations
For wind application, Fluid-immersed distribution transformers REN can be installed in three areas within the wind farm: in the transformer substation located beside the wind turbines, inside the wind turbine tower, or they can even be directly installed inside the nacelle of the turbine. Ratings for this particular application can go up to 9,8MVA and come with a rated voltage of up to 66 kV.