Design and Production
Our key services
Design and Production
The expert engineering team of Elprom Heavy Industries has developed a dynamic design system for the power transformers focused on continuous technical advancement and precision performance. Our main capabilities include:
- Optimization of transformer designs for technical proposals
- Electrodynamic analysis of short-circuit withstand capability
- Calculation of electric fields and maximum electric stresses
- Simulation of leakage flux distribution within windings
- Assessment of mechanical stresses on the transformer tank
- Evaluation of temperature rise distribution in the core and windings

Our transformer designs comply with all client-specific requirements and meet applicable national and international standards, including IEC, EN, ANSI, NEMA, IEEE and BS.
Our transformer cores are of the plain-type design, featuring 45° overlap joints for optimal magnetic performance. They are constructed from high-grade, cold-rolled, grain-oriented silicon steel with low-loss properties, in thicknesses ranging from 0.23 mm to 0.30 mm, and coated with organic and/or inorganic insulation layers. This results in lower noise and lower CO₂ footprint.
The windings are manufactured using high-conductivity copper conductors, offering superior dielectric strength.
The tank and cover are fabricated from high-quality, hot-rolled steel sheets, structural beams, and steel profiles. Internal surfaces are coated with oil-resistant paint, while external surfaces are protected using C5M-grade coatings, suitable for extreme environments.
Each transformer tank is engineered to withstand:
- Full vacuum conditions
- Hydraulic pressure from insulating oil
- Dynamic stresses during transportation
This robust construction ensures long-term reliability and operational safety in demanding environments.