RECTIFIER TRANSFORMERS

Transformers for AC/DC High Current Rectifier applications-

• Capacity up to 50 MVA;
• DC Voltage up to 1000 V;
• DC Current up to 140 kA;
• AC Primary Voltage up to 145 kV;
• Various configurations available in a single unit: single bridge, double bridge, double star with IPT, two double stars with IPTs;
• Multi-pulse topologies available: from 12-pulse unit to 72-pulse;
• Regulating autotransformer available in the same tank to allow on-load coarse voltage regulation.

CONVERTER TRANSFORMERS

Transformers for MV Drives and Converter applications

• Capacity up to 90 MVA;
• AC primary voltage up to 175 kV;
• Frequencies up to 400 Hz;
• Multi-pulse topologies available: up to 36-pulse in a single unit;
• Electrostatic shield between primary and secondary windings;
• Off-Circuit Tap-Changers available.
• Designed to meet all types of environmental conditions:
• extreme temperatures, from -50°C to +55°C;
• altitude, over 4000 m asl;