Application Industry: Chlor-Alkali Production, such as membrane/diaphragm cell for Cl₂, H₂, NaOH; Chlorate Manufacturing, such as NaClO₃, sodium chlorite; Water Treatment, such as NaOCl, ClO₂, on-site Cl₂; Precious Metal Refining, such as gold/silver chloride electrolysis.
A Chlor-Alkali Rectifier, unlike standard industrial rectifiers, must keep current rock-solid while blocking reverse events. If the DC wavers — even briefly — side reactions kick in, membranes degrade, product quality drops, or worse, you compromise safety. That's why it's the core of any chlor-alkali or chlorination plant.
Applications of Chlor-Alkali Rectifiers
› Chlor-Alkali Production — That's Where You Get Caustic Soda and Liquid Chlorine Take saturated brine. Run electrolysis. Out comes Cl₂, H₂, and NaOH.Membrane cell and diaphragm cell plants use this setup all the time. A Chlor-Alkali Rectifier is the standard choice here.
› Chlorate Manufacturing
Same thing applies. You need continuous DC to make sodium chlorate (NaClO₃), sodium chlorite, and other chlorine derivatives. Both chlor-alkali rectifiers and chlorination rectifiers can handle this.
› Fine Chemical and Water Treatment Industries
These rectifiers power sodium hypochlorite generators, chlorine dioxide systems, and on-site chlorine generation units for industrial water treatment. Chlorination rectifiers are particularly common in water treatment applications.
› Precious Metal Refining
You'll also find them in electrolytic purification of precious metals. Gold chloride, silver chloride solutions—that sort of thing. Both rectifier types work well here too.
Special Requirements for DC Power Supplies in Chlor-Alkali and Chlorination Applications
› Reverse Current Protection
High-speed DC breakers plus dedicated reverse current protection. Stops back EMF from electrolytic cells during power disturbances.
› High Current Regulation Accuracy
Typical requirement: ≤0.5%. Advanced systems: ±0.1%. Hold the membrane balance or pay the price.
› Low Harmonic Distortion and High Power Factor
Energy costs are huge in this business. That's why people go with 24-pulse, 36-pulse, or 48-pulse rectification—cuts the harmonics, cleans up your power.
› Large Power Capacity
Individual chlor-alkali rectifier and chlorination rectifier units often exceed 70 MVA. DC output runs from 20 kA to 60 kA. All depends on the plant scale.
Key Components of a Chlor-Alkali Rectifier System
› Regulating and Rectifier Transformer
Auto-transformer plus rectifier transformer with OLTC (on-load tap changer). Gives you multiple voltage steps to compensate for cell aging and process changes.
› Thyristor Rectifier Bridge
High-power SCRs in optimized parallel configurations. Better current sharing, lower losses, higher reliability at extreme currents.
› Pure Water Cooling System
Closed-loop deionized water cooling pulls heat out of power semiconductors. No issues with high-temp or corrosive environments at all.
› DSP-Based Digital Control Cabinet
Digital constant-current regulation with millisecond response. Talks to your DCS directly.
Features of Chlor-Alkali Rectifiers
› Fast Dynamic Response
Compensates for grid fluctuations and changes in cell back EMF. Output stays stable.
› High Conversion Efficiency
Low-conduction-loss thyristors push overall efficiency above 98%. Real savings.
› Corrosion-Resistant Construction
You get protective coatings, corrosion-resistant piping, treated busbar surfaces. All built to last in chlorine-laden environments.
› Optimized Current Sharing
Advanced busbar design and parallel rectifier configurations eliminate hot spots.
› Intelligent Monitoring and Diagnostics
Built-in alarms and diagnostics cover semiconductor failures, overheating, cooling system abnormalities.
Liyuan Haina Chlor-Alkali Rectifier Advantages
› Exceptional Energy Efficiency and Low Harmonic Performance
36-pulse and 48-pulse configurations as standard. Add APF (active power filter) and THD drops below 3%. Overall efficiency hits 98.5%.
› Advanced Corrosion Protection and Cooling Design
Fully enclosed cabinets, conformal coatings, and optimized cooling. Proprietary designs improve thermal balance and reduce maintenance.
› Modular Hot-Swappable Architecture
Drawer-type modules. Swap a faulty one without stopping production. That's 24/7 operation.
› Dual-Core Digital Control Platform
DSP + FPGA gives you accurate pulse sync, fast response, soft-start, and automatic current recovery. Minimizes stress on electrolytic cells.
› Grid-Friendly Design
Optimized transformer and rectifier configurations improve electromagnetic compatibility. Less interference with surrounding instruments, better plant power quality.
Selection Considerations for Chlor-Alkali Rectifiers
› Pulse Number Selection
Match pulse count to local power quality requirements and plant capacity.
6-pulse: Small-capacity applications
12-pulse: Conventional industrial systems
24/36/48-pulse: Large-scale chlor-alkali facilities needing superior harmonic performance
Higher pulse number = lower harmonic distortion.
› Voltage Regulation Range
Cell voltage changes as electrolyzers age. Get enough transformer regulation range to maintain efficient operation over the full service life.
› Cooling Method
Above 15 KA? Use closed-loop pure water cooling. Air-cooled only for lower-capacity installations in clean environments.
› Safety Configuration
High-speed DC breakers and comprehensive protection are essential. No shortcuts.
Inspection Process
Perfect inspection process and strict quality management measures to ensure excellent quality delivery
Quality Capability
Quality control system ensures product quality effectively and it’s the cornerstone for us
*ISO 9001, ISO 14001, ISO 45001, CE, CSA certifications
*Rigorous quality control procedures is implemented to ensure the quality
*Professional quality management team to provide quality assurance for customers and partners
Technical Parameters
Characteristic Types
Parameter Items
Technical Requirements
Power Types
Power types
High-frequency Power Supply
Model and specifications
TBSB-10KA/100V
Cooling mode
Water-cooled
Switch tube type
IGBT
Input Characteristics
Rated Input Voltage
Three-phase, AC380V±10% ,50~60HZ
Rated Input Power
1111KVA
Rated Input Current
AC 1688A
Input Power Factor
COSΦ≥0.95
Output Characteristics
Output Voltage
DC 0～100V
Output Current
DC 0～10KA
Stabilized Current Precision
≤1%（Rated Current)
According to accuracy
10A，0.01V
Rated output efficiency
≥94%
Environmental Conditions
Installation site
Indoor installations
Altitude
≤1500 meters
Ambient temperature
-20℃～40℃
Relative humidity
≤90％
Control Mode
Operating Mode
PLC, ADDA, Ethernet, RS485 and RS232
Protection Characteristics
With over voltage, over current, overload, short circuit, overheating and other abnormal self-protection function
If you require chlorination rectifiers with different specifications, we can custom-design them to meet your requirements. Please contact us for more information.
Looking for the factory price of a 100V 10KA IGBT energy-saving chlorination rectifier? Liyuan Haina Rectifier, a professional manufacturer with 27+ years specializing in industrial rectifiers, supplies global clients including the United States, Sweden, Netherlands, Italy, Spain, South Africa, Russia, Germany, Japan, South Korea, Malaysia, etc. Our advanced factory delivers cost-effective Made-in-China solutions, with competitive prices and customizable options. Contact us for sales inquiries.
Why Choose Liyuan Haina?
We've designed and built high-power industrial rectifiers for years. We customize every solution we deliver. Transformer design. Control systems. Cooling technologies. Harmonic mitigation. All of it. Long-term reliability. Energy efficiency. Operational safety. That's what we build for.
New project or existing plant upgrade. You get a rectifier that handles continuous chemical production without drama.
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