Constant Current Rectifiers for Sodium Hypochlorite Generators
In the deployment of municipal and heavy-industrial electrochlorination skids, the titanium electrode stack is only as reliable as the direct current (DC) driving it. Century engineers and manufactures the ultimate sodium hypochlorite generator power supply, specifically designed to handle the harsh realities of on-site brine electrolysis.
Unlike standard commercial power boxes, industrial-scale chlorine production requires massive electrical loads operating in highly corrosive plant rooms. We build heavy-duty constant current rectifiers utilizing advanced high-frequency switch-mode power supply (SMPS) topology. Engineered to deliver 200 Amps (200A) and beyond, these units ensure that your massive multi-plate titanium assemblies receive perfectly clean, uninterrupted DC power, guaranteeing consistent grams-per-hour (g/h) chlorine output regardless of external environmental variables.
The Engineering Challenge: Overcoming Salinity and Resistance
Skid builders frequently encounter a critical operational flaw in the field: fluctuating brine concentration. In a real-world municipal water plant, the salinity of the feed brine or the temperature of the incoming water rarely remains perfectly static.
According to basic electrical principles, as brine salinity or temperature drops, the electrical resistance of the fluid inside the electrolyzer increases. If your system relies on a standard Constant Voltage (CV) power supply, this spike in resistance will force the electrical current (Amps) to plummet. Because chlorine gas production is directly proportional to Amperage, a drop in current means an immediate, dangerous drop in disinfection capacity.
Our constant current rectifier logic eliminates this failure point entirely. The onboard microprocessor prioritizes Amperage over Voltage. As the internal resistance of the brine fluctuates, our logic board instantly and automatically scales the output Voltage up or down to maintain a rock-solid, unwavering Current setpoint. This ensures zero drop in active chlorine production, preventing low-output alarms and health code violations.
High-Amperage Delivery & Thermal Management
Electrolyzing large volumes of heavy brine requires sustained, massive electron flow. Our standard heavy-duty modules are engineered as a true high current dc power supply for electrolysis, capable of sustaining 200A continuous loads on a 24/7 duty cycle without experiencing thermal degradation. For massive multi-megawatt chlor-alkali plants, these units can be configured in parallel to scale up to thousands of amps.
Pushing this level of current generates substantial heat within the insulated gate bipolar transistors (IGBTs) and high-frequency transformers. To prevent thermal throttling, Century offers thermal management architectures based on your specific plant room conditions:
- Air Cooled Rectifiers: For well-ventilated, climate-controlled equipment rooms, we utilize oversized extruded aluminum heat sinks paired with high-CFM (Cubic Feet per Minute) industrial fans. The intake vents are protected by washable, heavy-duty salt-mist filters to prevent particulate ingress.
Technical Specifications: 200A Constant Current Series
| Technical Specification | Industrial 200A Constant Current Rectifier |
|---|---|
| Rectification Topology | High-Frequency Switch-Mode Power Supply (SMPS) |
| Maximum Output Current | 200A (Continuous 24/7 Duty Cycle) |
| Current Control Accuracy | ≤ ±1% (Guarantees stable chlorine output) |
| Output Ripple Coefficient | < 2% (Minimizes wear on Titanium MMO coatings) |
| Input Power Compatibility | 3-Phase 380V / 480V AC (Customizable by region) |
| Thermal Management | Filtered Forced Air |
| Hardware Protections | Over-Current, Over-Voltage, Phase-Loss, Over-Temp |
Frequently Asked Questions (FAQs)
Yes. While CC is the primary operational mode for sodium hypochlorite generation to maintain stable output, the system features an auto-crossover limit. If the resistance spikes so high that the required voltage exceeds the safe maximum limit of the unit, it will automatically clamp the voltage (CV mode) and trigger a high-resistance alarm to protect the circuitry.
Absolutely. Our high-frequency SMPS topology provides complete galvanic isolation between the high-voltage AC mains input and the high-current DC output. This is a critical safety requirement to protect plant operators and prevent electrical feedback loops into the facility's main power grid.
Contact Our Engineering Team Today
Ready to upgrade your plant’s disinfection capabilities with a reliable, plug-and-play modular system? Please contact us immediately to discuss your footprint specifications and receive a customized B2B quote.
