PRODUCTSpecial Type Transformer Converter Transformers

Converter Transformers

Rated voltage	UP TO145 kV
Rated capacity	UP TO 150 MVA

Transformers for MV Drives and Converter applications

MV Drive and Converter Transformers: The Heart of Modern Industrial Applications In the global Oil & Gas and LNG industries, MV drive transformers—also known as converter transformers—are the backbone of medium-voltage drive and converter systems.

These specialized transformers provide the essential interface between the electric grid and the Variable Frequency Drives (VFDs) that control compressors, pumps, and gas turbines in energy-intensive environments. At ZTelec, we specialize in the design and manufacture of custom MV drive and converter transformers for critical industrial processes.

Whether for onshore LNG terminals, offshore platforms, or petrochemical plants and mining our transformers deliver unmatched performance, efficiency, and reliability.

CAPACITY UP TO

150 MVA

AC primary voltage up to

145 kV

FREQUENCIES UP TP

400 Hz

Our Expertise

Multi-pulse Configurations: up to 36-pulses in a single transformer
Multi-Level Topologies: up to 18 independent secondary windings
Electrostatic Shield: to ensure superior electrical isolation
Tap Changers: Off-circuit for optimized voltage adjustment
Cooling Options: ONAN, ONAF, OFWF, OFAF—customizable for project needs
Insulating Fluids: mineral oil or less-flammable liquids for hazardous environments

All Specialtrasfo transformers can be fully designed and manufactured in accordance with the following certifications: ATEX, UL, CSA, ABS, IEC EX, GOST, CE, LLOYDS.

We are a trusted partner for major EPCs and OEMs.