Resin cast mold transformer for wind power generation
FRP reinforced coils / Evaluated for environmental resistance with many adoption achievements / Ideal for replacements
The transformers installed in wind power generation systems are exposed to changes in current and voltage far more frequently than those installed in general power distribution equipment, and the extent of these changes is also significantly greater. Furthermore, they are often installed in mountainous areas, coastal regions, or offshore, operating under the influence of wind, rain, temperature changes, humidity, and salt air. With Rishokycast molded transformers, we can address these issues faced by transformers used in wind power generation. The photo shows a 2300 kVA self-cooling step-up transformer installed inside the tower of a floating offshore wind turbine.
basic information
The coils of the resin-cast molded transformer are insulated with epoxy resin reinforced with glass fibers. This makes them very robust and prevents moisture (condensation), conductive substances dissolved in it, or dust from entering the coils, thus providing the environmental resistance required for transformers used in wind power generation. Furthermore, the coils are equipped with air ducts, allowing for self-cooling, meaning they can be efficiently cooled through natural convection. As a result, even at high capacities such as 2000 kilovolt-amperes, they do not require electric fans, resulting in lightweight and compact transformers, which have led to many successful applications, including replacements for existing transformers.
Price range
Delivery Time
Model number/Brand name
Resin cast mold transformer for wind power generation
Applications/Examples of results
Boost Transformer for Wind Power Generation Systems Upon request, we design and manufacture transformers to be installed in various locations of wind power generation, with many successful adoptions. - For installation inside the nacelle - For installation inside the tower - For installation in indoor cubicles adjacent to the tower
Detailed information
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▲Cross-section of the molded coil The coil is reinforced with glass fibers, and after vacuum impregnating it with low-viscosity epoxy resin to fill every corner of the gaps, it is thermoset, resulting in a robust coil reinforced with FRP.
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▲Unique Air Duct Inside the coil, an air duct is provided, allowing for efficient cooling through natural air convection. Even with large capacities like 2000 kVA, a compact design that does not require cooling fans is possible, enabling installation in limited spaces such as towers and nacelles.
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The epoxy resin used to insulate the coil is endowed with "self-extinguishing" properties. In the event of a fire occurring nearby, there is no concern about ignition or explosion.
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Epoxy resin is also used as an adhesive, providing excellent adhesion to metal parts such as terminals, preventing foreign substances from entering through gaps.
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Image mounted inside the nacelle.
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Image of being installed inside the tower of a floating offshore wind turbine.
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Resin cast molded transformers can be designed compactly, allowing them to be stored inside the tower through the existing hatch without disassembly during replacement.
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At Rishou Industrial, we have conducted various tests assuming that the resin-cast transformers will be placed in harsh environments, and we have obtained favorable results. For wind power applications, we will manufacture them in accordance with the voltage classes specified by international standards (IEC 60076-16/Wind Turbine Transformers). We also welcome inquiries regarding specifications related to weather resistance (Climatic class), environmental resistance (Environmental class), and fire behavior (Fire behavior class) as required by the same standards.
Line up（6）
| Model number | overview |
|---|---|
| Transformer for installation inside the nacelle | |
| Transformer for installation inside the tower | |
| Transformer for installation in land-based cubicles | |
| Transformer for installation in land-based wind turbines | |
| Transformer for installation in bottom-fixed offshore wind turbines | |
| Transformer for installation in floating offshore wind turbines |
