Protrafo has supplied a 10 MVA oil-filled power transformer for a grid-connected electric boiler (E-boiler) project in Finland. The transformer plays a key role in supporting the customer’s transition to clean, electrified heat production—contributing to national and EU climate goals.
The unit was custom-engineered to meet the dynamic load conditions typical of E-boiler systems, with special attention to thermal performance, voltage stability, and grid compatibility. Equipped with ONAN cooling and designed according to IEC standards, the transformer meets all technical and environmental requirements, including ECODESIGN Tier 2 compliance.
Protrafo managed the full scope of supply, including production, factory testing, transport coordination, and on-site commissioning support. The transformer was successfully delivered and installed within the agreed project timeline.
This project showcases Protrafo’s ability to deliver tailored transformer solutions for the growing field of electric heat infrastructure across Europe.
With this delivery, Protrafo once again proves its strength in managing complex transformer projects from design to installation—ensuring reliable power conversion for innovative energy systems. As electrification of heat gains momentum, we continue to support our partners with flexible, high-quality solutions that power the future of sustainable energy.
Designed to match your exact voltage, cooling, and installation requirements—up to 50 MVA and 110 kV.
Minimized losses and long-term energy savings, fully compliant with European standards.
Access live transformer data anytime via our cloud platform for smarter asset management.
From production to on-site delivery and installation—handled quickly and professionally across Europe.
A power transformer is an electrical device used to transfer high-voltage electrical energy between circuits, typically within power generation, transmission, and distribution systems. It adjusts voltage levels to ensure efficient long-distance power transmission and safe delivery to end users. Power transformers are essential in maintaining grid stability and energy efficiency.
Power transformers operate at higher voltages and are optimized for maximum efficiency under full load, typically used in transmission networks. Distribution transformers work at lower voltages and are designed for variable loads closer to end users.
Power transformers are commonly used in voltage ranges above 36 kV, with typical primary voltages of 110 kV, 150 kV, or higher, and secondary voltages around 10 to 36 kV.
We use specialized heavy-load carriers to ensure safe and stable transport. Depending on the transformer size and weight, we arrange road, sea, or multimodal transport.
Yes, we provide on-site coordination and, if required, technical assistance to ensure a smooth installation process.
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