TET-ESTEL specifics is in custom high-quality innovative equipment production, designed at its own premises and tailored to meet all customer requirements,
including equipment for rolling stock and traction substations.

First Mercury rectifier unit for an electric locomotive was developed and released by TET ESTEL in 1958.

Today, Company produces various kinds of power converters for DC traction substations of electric railways, underground railways and urban transport.
In Estel converters some leading world manufacturers components are used. Company also providing complete solutions in this area.

In total, TET-ESTEL has supplied more than 12 000 pieces of equipment for railway, subway and urban electric transport.