Tesar’s strengths at a glance:
Cast resin expertise since 1979
Deep know-how in design, casting processes, resin systems and aging behavior of dry-type transformers.
Three production sites – one quality standard
Development and manufacturing in Italy, Poland and the UAE with harmonized standards, certified management systems (including ISO 9001, 14001, 45001) and state-of-the-art test laboratories.
Ecodesign & energy efficiency
Loss-optimized designs in line with EU Ecodesign requirements and international standards; focus on low total cost of ownership (TCO) and CO₂ reduction.
Broad range of applications
Solutions for distribution networks, industry, infrastructure, data centers, ports, renewable energy projects, rail, e-mobility, storage applications and special projects in demanding climate zones.

Every casting a promise of quality
“When casting our windings, every second counts – our experience makes the difference in safety and durability.”






