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Tesar company was established in 1979 becoming the first Italian company to implement the technology for the production of Cast Resin Transformers. With 40 years’ experience in design and manufacturing, Tesar is able to provide to its clients Medium Voltage Cast Resin Transformers with rated power up to 25 MVA and primary voltage up to 36 kV.
Tesar has four production plants (Italy, Poland, Abu Dhabi) and more than 250 employees allowing the production of nearly 4000 units per year, satisfying client's demand of highly customized solutions and short delivery time. Nowadays, having become part of R&S Group, Tesar is one of the worldwide leading Companies with high research and technology innovation standards. With high-end electrical products and innovative solutions, we are a trusted partner to our customers having our processes ISO 9001, ISO 14001 and OHSAS 18001 certified. Tesar is proud to claim fully approved CESI Laboratory and an impressive portfolio of routine, type and special tests.