Protrafo’s oil-filled distribution transformers are engineered for exceptional quality and efficiency, making them a trusted choice for modern energy distribution systems.
Exceptional quality and efficiency
Our hermetically sealed transformers are designed for high efficiency, minimizing energy losses during power transmission and reducing overall energy consumption.
Fast delivery
At Protrafo, we understand the urgency of your energy needs. That’s why we guarantee rapid production and shipping, ensuring your transformer arrives on time, every time – no delays, no excuses!
Built to IEC standards
Our transformers meet IEC 60076 standards for safe, reliable, and high-performance operation—no matter the environment.
EU wide service
Wherever you operate in Europe, Protrafo is ready to support you. Our experienced team ensures fast delivery, installation and service across the EU — with the reliability you need, wherever you are.
5 year warranty
Every Protrafo transformer comes with up to a solid 5-year warranty, giving you long-term peace of mind. We stand behind our quality, so you can focus on powering what matters most.
A Proven Process You Can Rely On
At Protrafo, every transformer goes through a streamlined process — from engineering to delivery. Each step is handled by specialists to ensure top quality and reliability.
Each transformer is engineerd and crafted with care in state-of-the-art facilities. Our production team follows strict quality standards to ensure durability, efficiency, and long-lasting performance.
Before any transformer leaves our facility, it undergoes extensive testing. Our engineers verify every detail to guarantee optimal safety, performance, and compliance with international standards.
We coordinate every shipment with precision. Whether it’s local or international, our logistics partners ensure your transformer arrives safely, on time, and ready for installation.
Frequently Asked Questions and answers.
Our oil-filled transformers use advanced oil cooling technology to efficiently dissipate heat and reduce energy losses. This ensures stable voltage regulation, improved power quality, and minimal downtime, making them a cost-effective solution for your power distribution needs.
Production time for an oil-filled transformer typically ranges from 6 to 12 weeks, depending on the specifications, capacity, and required certifications. For urgent projects, Protrafo can deliver from stock or offer accelerated production in coordination with our manufacturing partners. Custom-built units with special features may require additional lead time.
Dry-type transformers use air for cooling and solid insulation, making them suitable for indoor environments where fire safety is a concern. Oil-filled transformers use liquid insulation and oil for cooling, offering higher efficiency, better overload capacity, and longer lifespan. They are typically used outdoors or in high-power applications. Each type is chosen based on the specific safety, performance, and environmental requirements of the installation.
An oil-filled distribution transformer is a high-performance electrical device that uses insulating oil to cool and insulate its windings. This design provides excellent heat dissipation and reliability, making it the ideal choice for industrial and utility applications where efficiency and long-term performance are critical.
Transformer oil serves two key purposes: insulation and cooling. It insulates internal components to prevent electrical faults and helps dissipate heat generated during operation. High-quality mineral or synthetic oils, such as MIDEL, also enhance fire safety and extend transformer lifespan.