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Chlor-Alkali Production

DC power supplies for chlor-alkali electrolysis

Chlor-alkali electrolysis converts brine into chlorine, caustic soda and hydrogen. At the heart of this continuous industrial process is a reliable DC power supply that delivers the required current efficiently and consistently. 

plating electronic engineers DC power supply systems around the requirements of your electrolyzer, plant architecture and operating profile. From early system calculations and technology selection to integration, commissioning and long-term service, we help you create a power solution that supports reliable day-to-day production.

Reliable power for continuous production

Unplanned power interruptions can directly affect production output and plant availability. That is why a chlor-alkali DC power supply must do more than provide the required current.

The complete system needs to support:

  • High availability during continuous operation
  • Efficient power conversion at high current levels
  • Stable and repeatable control behaviour
  • Reliable operation under the defined site conditions
  • Practical maintenance and service access
  • Clear integration into the wider plant control system

We define the power supply concept around the actual process conditions instead of starting from a generic configuration.

Engineered around your electrolyzer and plant

Every chlor-alkali plant has its own requirements. Cell technology, voltage and current range, production capacity, redundancy strategy, grid connection and installation environment all influence the right system design.

Together with your project team, we consider:

  • Required DC voltage, current and power
  • Electrolyzer load profile and control requirements
  • Availability and redundancy targets
  • Grid conditions and power quality requirements
  • Cooling and environmental conditions
  • Control, communication and safety interfaces
  • Installation, commissioning and service concept

This system approach helps reduce integration risk and creates clear interfaces between the DC power supply, electrolyzer and plant infrastructure.

SCR and switch-mode DC power solutions

Depending on the required power level and plant concept, chlor-alkali power supplies can be based on thyristor technology, also known as SCR rectifier technology, or on modern switch-mode technology.

SCR systems provide a robust platform for demanding high-current and multi-megawatt electrolysis applications. Switch-mode systems support modular concepts where compact design, precise control and flexible system configuration are important.

plating electronic supplies cabinet, skid-mounted and containerized configurations. The appropriate technology and design are selected based on your process data, site conditions and project requirements.

From engineering to lifecycle service

A chlor-alkali rectifier system is part of a larger production environment. Reliable operation therefore depends on correct system sizing, coordinated interfaces and practical support throughout the project.

plating electronic supports you with:

  • System calculations and technical concept development
  • Technology and configuration selection
  • Integration and interface guidance
  • Project execution support
  • Installation and commissioning support
  • Maintenance, spare parts and long-term service

You receive clear recommendations and a power supply concept designed to remain reliable and serviceable throughout its operating life.

Let’s discuss your chlor-alkali project

Share your electrolyzer data, power requirements and site conditions with our engineers. Together, we will define a DC power supply system that fits your process and project.

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