Energoin manufactures reliable and efficient distribution transformers – medium-power and high-power oil-immersed transformers, as well as cast resin dry-type transformers. Our production facilities are located in Bosnia and Herzegovina and Turkey. In Germany, we operate a sales and representation office (ARET GmbH), which serves as a central point of contact for our customers in Europe.
Our goal is to deliver customized solutions tailored to the individual requirements of our customers – without compromising on quality, safety, and reliability. Years of experience, modern manufacturing technologies, and demanding customers confirm our high standards of quality.
Production capacity:
• Oil-filled distribution transformers: 100–5000 kVA, up to 36 kV
• Oil-filled medium-power transformers: 5–10 MVA, up to 36 kV
• Oil-filled power transformers: 10–50 MVA, up to 110 kV
• Cast resin transformers – dry-type transformers: 250 kVA–20 MVA, up to 36 kV
In addition, we manufacture coils, active components, and complete transformers up to 80 MVA for leading global transformer manufacturers.
Each transformer is individually designed, taking into account its specifications and environmental conditions. The factors influencing the transformer’s efficiency and performance are carefully considered during the design phase. Our transformers comply with the international standards EN 60076-1, BS 171, DIN, ANSI, ENEL CSA, as well as the European Directive 548/2014 (Tier 1 & Tier 2).

ENERGOIN oil-filled distribution transformers stand for high reliability, long service life, and precise manufacturing quality. Through the use of modern production technologies and high-quality materials, our products meet the highest technical requirements.

We develop and supply customized medium-voltage transformers precisely tailored to your technical and operational requirements. Whether used in power plants, energy distribution networks, or industrial facilities, our solutions stand for reliability, efficiency, and durability.

Our power transformers are custom-made starting at 5000 kVA and 110 kV. Power transformers offer a wide range of technical characteristics, including power output, voltage, and voltage regulation.

Our dry-type transformers are an environmentally friendly, maintenance-free, and fire-safe alternative to oil-cooled transformers. They are ideally suited for buildings, industrial plants, and sensitive infrastructure. Moisture-resistant and ready for immediate operation – even after extended periods of inactivity.