Electrodialysis Desalination – 60V 800A GAOHUI High Frequency Switch Mode Power Supply

Executive Summary
This is the GAOHUI 60V 800A industrial electrodialysis rectifier, a zero-crossing, ultra-low ripple DC power supply engineered specifically for ion-exchange membrane separation processes. Unlike generic power sources, this unit delivers the precise, stable direct current required for efficient brackish water purification, wastewater recovery, and salt concentration. As a dedicated industrial high frequency rectifier factory, we have optimized this unit to run 24/7 in harsh, humid environments without voltage drift. If you are evaluating heavy-duty DC power supply price against total cost of ownership, this model offers the highest efficiency curve in its class with a tested >92% AC to DC conversion rate at 60V 800A.
Part 1 Key Features & Engineering Highlights
Stable DC Output with Zero Ripple Interference: This rectifier utilizes a high frequency IGBT switching topology followed by a multiple-stage LC filter. The output ripple is less than 1% RMS, preventing fouling and damage to sensitive ion-exchange membranes during electrodialysis ED duty cycles. Automatic current limiting ensures the stack is never over-driven.
Adaptive Load Regulation: The 20kHz switching frequency allows the unit to respond instantly to changing load resistances caused by varying salinity levels in the feed water. Voltage remains locked at setpoint regardless of temperature or time changes, critical for consistent desalination performance.
Built for Factory-Quality Production: Each unit from the IGBT rectifier manufacturer GAOHUI undergoes a full 48-hour burn-in test under simulated electrodialysis load. The 60V 800A unit includes internal fan cooling with IP54-rated enclosures to withstand conductive salt mist.
Part 2 Technical Specifications Table
| Parameter | Specification |
| — | — |
| Model Number | GAOHUI-GFY-60V800A |
| AC Input Voltage | 380V ± 10%, 3 Phase, 50/60 Hz (Other voltages: 415V, 480V available) |
| Output Voltage Range | 0 – 60V DC (Stepless Adjustment) |
| Output Current Range | 0 – 800A DC (Continuous Duty) |
| Output Power | 48 kW |
| Output Ripple | ≤ 1% RMS (Filtered Switching Frequency) |
| Voltage Regulation Accuracy | ± 0.5% |
| Current Regulation Accuracy | ± 0.5% |
| Control Mode | Constant Voltage (CV) / Constant Current (CC) with automatic crossover |
| Display | Digital LED Metering for V & A |
| Efficiency | ≥ 92% |
| Cooling Method | Forced Air Cooling (Internal Fans) |
| Operating Temperature | -10°C to +50°C |
| Protection Class | IP54 (Power Cabinet) |
| Weight | Approx. 150 kg |
| Dimensions (L x W x H) | 800mm x 600mm x 1300mm |
Part 3 Advanced Built-in Protection Systems
The 60V 800A unit is equipped with triple-redundant safety logic designed to protect both the rectifier and the electrodialysis stack.
Over Voltage Protection (OVP) and Under Voltage Protection (UVP): Shuts down output instantly if voltage jumps due to a load disconnect or falls due to a short in the membrane stack.
Over Current Protection (OCP) and Short Circuit Protection: Limits output automatically and triggers alarm without fusing damage.
Over Temperature Protection (OTP): Temperature sensors on the IGBT modules and transformer reduce output power if airflow is obstructed, preventing catastrophic failure.
Phase Loss and Phase Imbalance Detection: Protects the unit from unstable three-phase supply lines common in remote desalination plants.
Soft Start and Stop Ramp: Prevents hydraulic shock to pumps and avoids sparking at the electrodes when starting or stopping the ED system.
Part 4 Target Industrial Applications
Electrodialysis Desalination ED: Primary application for treating brackish water and municipal sewage. Provides the exact DC field strength needed for ion migration through selective membranes.
Reverse Electrodialysis (RED): Supports pilot and commercial RED systems where stable potential difference is required across the membranes.
Ion-Exchange Membrane Regeneration: Used to recover acids, bases, and metals from spent solutions, maintaining precise voltage for membrane integrity.
Industrial Wastewater Concentration: Reliable for zero liquid discharge (ZLD) systems requiring a steady DC source for electrochemical concentration.
Part 5 Customization and Tailored Engineering Services
GAOHUI is a custom current voltage rectifier factory. The 60V 800A model can be adapted to any process requirement. Our engineering team supports full customization:
Voltage & Current Range: Factory configurable from 1V to 1000V, 1A to 100,000A. Input is traditional AC (3-Phase or Single-Phase); Output always pure DC.
Process Control Modules:
Process Timer (Set total run time for batch ED systems).
Multi-Stage Profile Control (Pre-program current/voltage steps for different salinity phases).
Ampere-Minute / Ampere-Hour Integrator (Precise dosing control based on total charge passed).
Automatic Polarity Reversal (EDR) for self-cleaning stack operation.
Remote & Communication Interfaces:
RS485 Modbus RTU (Standard).
Ethernet / TCP-IP (For SCADA integration).
Analog 4-20mA Control (For external PLC master control).
Pulse & Power Modulation Functions:
Adjustable Pulse Frequency: 1Hz to 3000Hz.
Adjustable Duty Cycle: 1% to 99%.
Optimized for electrocoagulation and advanced electrolysis processes requiring pulsed DC.
We offer a 15-day manufacturing lead time on standard 60V 800A units. Contact our sales engineers for your complete electrodialysis power supply system.