Electrocoagulation – 30V 2000A Heavy-Duty IGBT DC Rectifier (Electrolysis Power Supply)

EXECUTIVE SUMMARY
This 60kW industrial DC power supply is engineered specifically for electrocoagulation (EC) water treatment systems. Designed to replace legacy phase-control rectifiers, it delivers a pure, ripple-free 30V 2000A output using advanced IGBT switching technology. The unit directly addresses the severe chemical and environmental stressors present in wastewater flocculation and heavy metal precipitation processes. It features an industrial-grade anticorrosive cabinet, digital closed-loop control, and the ability to handle variable conductivity loads without voltage collapse. For engineers or procurement managers sourcing from a reliable industrial high frequency rectifier factory, this model offers a compact, high-efficiency alternative to bulky transformer-based systems.
PART 1: KEY FEATURES & ENGINEERING HIGHLIGHTS
Precision IGBT Power Stage: Utilizes a full-bridge IGBT inverter topology operating above 20kHz. This ensures that the DC output is exceptionally smooth, reducing electrode passivation and improving the efficiency of floc formation during electrocoagulation.
Highest Efficiency in Class: Exceeds 92% efficiency at full load. Lower thermal dissipation means less need for forced cooling and a smaller footprint compared to traditional silicon-controlled rectifiers. This directly reduces the total heavy-duty DC power supply price per kilowatt over the unit’s lifecycle.
Robust Corrosion Protection: Features an IP54-rated main cabinet with a specialized acid-resistant powder coating and sealed cooling tunnels. Internal components, including the busbars and PCB, are conformal coated to protect against hydrogen sulfide and chlorine gas common in EC environments.
Rapid Dynamic Response: Digital signal processor (DSP) control provides a response time of under 1 millisecond for transient load changes. This prevents output drift during the varying electrode conductivity experienced in high-load electrocoagulation processes.
PART 2: TECHNICAL SPECIFICATIONS

PART 3: ADVANCED BUILT-IN PROTECTION SYSTEMS
The unit is not just a power source; it is a protective bridge for your electrolysis cell. It integrates a multi-stage safety logic that responds to real-time circuit anomalies. Core protections include:
Input Phase Loss & Sequence Detection: Prevents the drive from running on single-phase, which can damage the IGBT modules.
Output Short Circuit & Overload Protection: Features a dual slope current limiter. During a dead short, the unit cuts output in under 10 microseconds, then attempts a soft restart.
Over Temperature Trip: Independent thermistors monitor the IGBT heatsink and internal ambient temperature. The unit will automatically de-rate current or shut down to prevent thermal runaway.
Dry Run/Electrode Disconnect Protection: Detects an open circuit condition at the output terminals, preventing arching and damage to the busbar connections.
PART 4: TARGET INDUSTRIAL APPLICATIONS
Designed for heavy-duty continuous operation, this rectifier is the workhorse for the following demanding environments:
Electrocoagulation (EC) Systems: For treating industrial wastewater streams including oil/water emulsions, textile dyes, and food processing effluents.
Heavy Metal Precipitation: Used in electro-winning or electro-precipitation systems to remove copper, nickel, chromium, and zinc from rinse waters.
Electrolytic Flotation (E-Float): Providing the precise DC current required for hydrogen and oxygen bubble generation to float suspended solids.
Brine & Seawater Treatment: Ideal for ballast water treatment systems that require robust, corrosion-proof power electronics in marine environments.
PART 5: CUSTOMIZATION AND TAILORED ENGINEERING SERVICES
As a professional IGBT rectifier manufacturer, we understand that one size does not fit all for electrochemistry. Our engineering team offers full customization to match your specific process chemistry and electrode configuration. We can factory-configure the unit within a broad window of 1V-1000V and 1A-100,000A. The standard input is AC three-phase, with a pure DC output.
Optional add-on modules to increase process control include:
Process Timer & Auto Cycle Control: Program specific duration and voltage/current ramps for different treatment batches.
Multi-Stage Profile Control: Create a segment-based profile (e.g., 30V/1500A for 5 minutes, then 15V/500A for 2 minutes) to optimize energy per liter.
Ampere-Minute Integrator: An on-board digital integrator that tracks total coulombs passed, allowing precise chemical dosing calculations without external PLCs.
Automatic Reverse Polarity (ARP): A heavy-duty contactor system that automatically flips electrode polarity at configurable intervals to prevent passivation.
Soft-Start & Voltage Ramp: Prevents hydraulic shock or current surge when energizing fresh electrodes.
For remote monitoring and integration into existing SCADA networks, the unit is equipped with optional interfaces: RS485 Modbus RTU, Ethernet for web-based monitoring, and a 4-20mA analog interface for direct PLC communication. Advanced models also include Pulse Functions with adjustable frequencies from 1Hz up to 3000Hz, enabling the operator to fine-tune floc size and density in real-time. For specialized needs, we are ready to engineer a custom current voltage rectifier built to your exact filtration or precipitation line specifications.