TESAR - special resin-encapsulated power transformers. The company was founded in 1979 and was the first in Italy to use a new technology for producing resin-encapsulated power transformers. After 1986 production was expanded to include instrument transformer portfolio. You will also find the production of oil transformers that are manufactured to the highest standards. The manufacturer is the largest in Italy with an annual capacity of more than 3000pcs and is one of the 4 largest manufacturers of transformers in Europe.