GAOHUI 30V 5000A IGBT High-Frequency Water-Cooled Hydrogen Electrolysis Rectifier Power Supply

Part 1: Key Features

– Advanced Germany technology IGBT inverter topology with high-frequency switching for ultra-stable DC output at 30V and 5000A, achieving over 92% efficiency and a power factor above 0.99.
– Integrated water-cooled cooling system using deionized water circulation, engineered for continuous 24/7 operation in hydrogen electrolysis environments with minimal thermal drift.
– High-precision digital control with ±0.5% voltage and ±1% current regulation, ensuring consistent hydrogen production rates and gas purity.
– Modular design with hot-swappable IGBT modules, allowing for easy maintenance and reduced downtime in industrial electrolysis plants.
– Low ripple output less than 3% RMS, critical for minimizing electrode degradation and maximizing energy conversion efficiency in alkaline or PEM electrolyzers.

Part 2: Technical Specifications

Input Voltage	380V AC ±10%, 3-Phase, 50/60Hz (Optional 10kV or 35kV with step-down transformer)
Output Voltage	0-30V DC continuously adjustable
Output Current	0-5000A DC continuously adjustable
Rated Power	150kW
Cooling Method	Water-cooled (deionized water, closed-loop system)
Efficiency	Greater than 92% at full load
Power Factor	Greater than 0.99
Harmonic Distortion (THD)	Less than 3%
Regulation Accuracy	Voltage: ±0.5%, Current: ±1%
Output Ripple	Less than 3% RMS
Operating Temperature	0°C to 45°C
Protection Class	IP54 (control cabinet), IP20 (rectifier unit)

Part 3: Built-in Protection Systems

– Over-voltage and under-voltage protection with automatic shutdown to safeguard electrolysis cells.
– Over-current and short-circuit protection with fast-acting IGBT gate drive cutoff.
– Over-temperature protection with real-time monitoring of IGBT heatsinks and coolant temperature; triggers alarm and shutdown if limits exceeded.
– Phase loss and input imbalance detection to prevent damage from unstable grid supply.
– Ground fault leakage detection with trip threshold adjustable for high-current electrolysis systems.

Part 4: Main Applications

– Hydrogen production via alkaline water electrolysis and PEM electrolysis.
– Industrial electro-winning and electro-refining of metals such as copper and zinc.
– Water treatment and wastewater electrolysis for disinfection and pollutant removal.
– Chlor-alkali and other electrochemical processes requiring high-current, low-voltage DC power.

Part 5: Customization and Tailored Engineering Services

GAOHUI offers full customization for your specific hydrogen electrolysis or industrial process. Our factory can tailor output voltage from 1V to 1000V and current from 1A to 100,000A, exclusively for AC-DC power supplies. We integrate advanced control functions including Digital Process Timer for batch cycle automation, Multi-Stage Programmable Profile Control for dynamic voltage/current ramping, Ampere-Minute Integrator for precise charge measurement, Automatic Reverse Polarity for periodic electrode cleaning, and Soft-Start Ramp-Up to prevent thermal shock. Local/Remote Control is available via rugged Push-Button panel or intuitive HMI Touch Screen with full data logging. Communication Interfaces include RS485 Modbus RTU, Ethernet TCP/IP, and 4-20mA analog for seamless integration with plant SCADA systems. Additionally, we offer Pulse Functions with adjustable duty cycle from 1% to 100% and frequency from 1Hz to 3000Hz for advanced electrochemical modulation.