Low Voltage Transformers
High‑performance VPI & Cast Resin technology
TMC Transformers LV is a division of TMC Transformers, focuses on the manufacturing of low-voltage dry-type low voltage transformers and reactors up to 6MVA, with insulation classes reaching up to 1.1kV.
These units are primarily manufactured using the VPI (Vacuum Pressure Impregnation) process - an advanced method in which the windings are impregnated with epoxy resin under vacuum conditions to ensure deep penetration and enhanced mechanical strength. When required, transformers can also be produced with cast resin insulation systems, offering additional robustness for specific applications.
Across all configurations, TMC LV transformers provide excellent dielectric performance, high thermal stability, and long-term resistance to short‑circuit forces and environmental stress, ensuring reliability in demanding operational contexts.
Production takes place in TMC’s dedicated 8.000sqm manufacturing plant in central Italy, where both standard low‑voltage transformers and custom-engineered special designs are developed to meet precise customer specifications. This flexibility allows TMC to serve a wide range of industries - including traction, data centers, industrial, Oil & Gas, and renewable energy - with solutions tailored to their technical and environmental requirements.
- Unlike traditional transformers, TMC low voltage dry transformers use air or water for cooling instead of oil, completely eliminate the risks of fire or explosion.
- TMC has challenged the dry type transformers market by designing them to endure outdoor installations, even in the harshest environments, offering protection levels from IP21 to IP65/IP67.
- TMC transformers are complied with all major international standards, including IEC, IEEE, CSA, UL, ANSI, NEMA, and NRCan.
