Rectifier Transformer
High-current DC power for electrochemistry, aluminium smelting, oilfield, and green hydrogen.
High-Current DC for Industry
Hartwerk Power rectifier transformers are engineered for applications requiring massive DC current at precisely controlled voltage — from aluminium potlines and chlor-alkali cells to oilfield drilling and the emerging green hydrogen electrolysis market.
Featuring interphase reactors for 12-pulse or 24-pulse rectification, harmonic mitigation windings, and robust thermal management for continuous full-load operation. Every unit is custom-designed to match your rectifier stack topology and duty cycle.
Key Features
High-Current Design
Secondary windings rated up to 100 kA DC output for electrolytic and smelting processes.
Harmonic Mitigation
Phase-shifted windings for 12/24-pulse configurations. Built-in interphase reactors.
Green Hydrogen Ready
Optimised for PEM and alkaline electrolyser duty cycles with low ripple DC output.
Custom Duty Cycle
Designed for your specific rectifier topology, overload profile, and cooling method.
Technical Specifications
Applications
Electrochemistry
Chlor-alkali, copper electro-winning, zinc electrowinning DC power supply.
Aluminium Smelting
Hall-Héroult potline power with diode or thyristor rectifier stacks.
Green Hydrogen
Low-ripple DC for PEM and alkaline electrolysis at scale.
Oilfield DC Power
Drilling rig and downhole heating transformer-rectifier units.
Interested in learning more?
Our engineering team is ready to provide detailed specifications, performance curves, and a tailored quotation for your requirements.
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