Phase-Shifting Rectifier Transformer for Multi-Pulse Rectification

This phase-shifting rectifier transformer provides multi-pulse rectification for high-voltage inverters and industrial DC power supplies. Using extended-delta phase-shifting windings, it achieves 12-pulse to 36-pulse rectification to suppress input current harmonics and improve power factor.

The Class H insulation system with VPI-treated windings ensures thermal stability under cyclic overloads. Designed for variable-frequency drives, electrolytic processing, and heavy industrial rectification requiring precise phase-angle control and reliable power conversion.

Feature

• Multi-Pulse Harmonic Suppression — Extended-delta windings achieve 12-pulse to 36-pulse rectification, canceling dominant harmonics and reducing grid-side THD without external filters.
• Class H Insulation System — VPI-impregnated windings with H-class materials (180°C) withstand thermal stress from harmonic currents and cyclic overloads.
• Precise Phase-Angle Control — Custom phase-shift angles (0°, 12°, 24°, 36°, 48°) match multi-winding configurations for balanced current sharing across rectifier bridges.
• High Overload & Short-Circuit Withstand — Reinforced winding structure handles load surges typical of industrial rectification and VFD startup.

Parameters

Environmental Conditions