Reliable and competitive products

We offer our customers reliable and competitive products made with the best quality raw materials and high-performance technology

National leader among transformer manufacturers

We are a national leader among toroidal transformer manufacturers, with a network of over 1500 customers in the country and abroad

Petra Toroid quality sign

We ensure quality, flexibility in designing special transformers and application support

Toroidal transformers, voltage sources, voltage stabilizers, inductors, lamellar transformers, fixing systems for toroidal transformers.
Winding conductors and electrical insulating materials
The Petra Toroid Building
Technical characteristics of transformers and autotransformers