Electrocatalytic Treatment Rectifier GAOHUI 48V 1000A High Current DC Source

Executive Summary
GAOHUI presents the definitive power conversion solution for advanced electrocatalytic oxidation processes. This industrial high frequency rectifier factory flagship unit delivers a precise, fully regulated 48 Volt DC output at a sustained 1000 Amperes of continuous current. Engineered specifically for demanding electrolysis environments, it replaces inefficient silicon-controlled rectifiers (SCRs) with modern IGBT switching technology, achieving industry-leading conversion efficiency while drastically reducing harmonic distortion and physical footprint. This is the critical power interface for breaking down persistent organic pollutants through electro-Fenton or anodic oxidation mechanisms.
Part 1 Key Features & Engineering Highlights
High-Frequency IGBT Technology At its core, this rectifier utilizes a robust full-bridge IGBT topology coupled with a high-frequency ferrite transformer. This design eliminates the massive 50/60Hz main transformers of older units, resulting in a lighter, more compact form factor that can be wall-mounted near process tanks.
Ultra-Precise DC Regulation The advanced PWM controller maintains output voltage within 0.5% ripple (RMS) under full 1000A load. This pure, stable DC waveform is essential for consistent electrode polarization and maximizing the generation of hydroxyl radicals during the oxidation reaction. The constant current mode ensures uniform current density across all electrode surfaces.
Industrial Grade Construction The chassis is fabricated from heavy-gauge cold-rolled steel with a baked electrostatic powder coating for corrosion resistance in humid industrial settings. All internal bus bars are silver-plated copper, with IP54-rated sealed electronics that separate the power stage from the control board, ensuring longevity in dirty water treatment facilities. For a competitive heavy-duty DC power supply price, this unit delivers unmatched value in the 48kW class.
Part 2 Technical Specifications Table
| Parameter | Specification | Notes |
| :— | :— | :— |
| Output Voltage | 0 – 48 Vdc | Continuously adjustable |
| Output Current | 0 – 1000 A | Continuously adjustable on-the-fly |
| Input Voltage | 380 Vac ±15%, 3 Phase, 50/60 Hz | Tolerant to weak grids |
| Rated Output Power | 48 kW | Typical derating to 44 kW at 50°C ambient |
| Efficiency | ≥ 92% (at full load) | Reduces energy loss in COD removal |
| Ripple & Noise | ≤ 1% (rms) / ≤ 5% (peak-peak) | Ensures smooth electro-Fenton advanced oxidation |
| Control Method | Constant Current (CC) / Constant Voltage (CV) | Automatic cross-over |
| Cooling Method | Forced air, dual redundant fans | Variable speed for noise reduction |
| Operating Temp | -10°C to +50°C | Derate linearly above 40°C |
Part 3 Advanced Built-in Protection Systems
Operational reliability is non-negotiable. This unit includes fully automatic protection against Input Over/Under Voltage, Output Over Voltage (OVP), Over Current (OCP), Over Temperature (OTP) (with thermal probe on both IGBT heat sink and transformer core), Short Circuit, and a dedicated dry contact alarm relay for remote monitoring. A digital phase loss detection circuit instantly shuts down the power stage if one input phase drops, preventing damage to the main capacitors during heavy industrial effluent treatment surges.
Part 4 Target Industrial Applications

This DC power source is purpose-built for: IGBT rectifier manufacturer recommended applications include high-rate electro-Fenton advanced oxidation systems for COD removal from pharmaceutical or textile wastewater. It also excels in heavy industrial effluent treatment of landfill leachate, and for powering bipolar electrolytic cells designed to generate ozone or hydrogen peroxide on-site. For custom setups requiring specific shape or connectivity, custom current voltage rectifier options are available through our engineering portal.

Part 5 Customization and Tailored Engineering Services
GAOHI’s factory facility offers deep customization beyond standard parameters. We configure units for any voltage-current combination within a massive range: 1V-1000V and 1A-100,000A, all DC output.
Processing Modules Available
Process Timer: Relay output to signal process completion.
Multi-Stage Profile Control: RAMPS for a gradual rise to maximum current density.
Ampere-Minute Integrator: Coulomb counting for precise chemical dosing.
Automatic Reverse Polarity: Programmable forward/reverse cycles to prevent electrode passivation.
Soft-Start: Programmable ramp time from 0.1 to 99.9 seconds.
Remote Interfaces
RS485 Modbus RTU (standard), Ethernet TCP/IP (optional), Analog 4-20mA (input and retransmission).
Pulse Functions: Selectable pulse current mode with 1-3000Hz adjustable frequency for enhanced mass transfer during electrocatalysis. We provide full electrical schematic, CE declaration, and 24-month warranty on IGBT modules.