Rectifier for Electrolysers in Green Hydrogen

High Power DC Supply for Green Hydrogen Production

Statcon Energiaa’s Rectifiers for Electrolyser are designed for high-voltage and high-current Green Hydrogen applications, apart from Electroplating and other downstream applications.

Our Military-Grade power electronics assure long operability, minimal maintenance, and cutting-edge technology. We offer efficient and reliable DC Power Supplies for industrial water electrolysis.

Statcon Energiaa’s Green Hydrogen Rectifier supplied for NTPC, Leh Green Hydrogen Mobility Pilot Project (Forced Air-Cooled; Outdoor Container Type); 2x558kW Rectifiers – 3600A/ 155V
How does rectifier work in electrolyser-Statcon
Basic working diagram of a Rectifier powering an Electrolyser
NTPC Leh Green Hydrogen Mobility Pilot Project Rectifier Electrolyser - NTPC Leh Rectifier
2x558kW Rectifiers Containerised Solution – 3600A/ 155V for NTPC, Leh Green Hydrogen Mobility Pilot Project (Forced Air-Cooled; Outdoor Container Type)

High Power Rectifiers for Green Hydrogen production are essentially High Power DC Supplies for electrolyzers that help make hydrogen production robust, simple and cost-efficient

Our products are optimised to rectify:

  1. Input Side Power quality (including Harmonics and PF), and
  2. Output Side DC Power quality (in terms of the stability, regulation (both against Line and Load variations) and output AC ripples in DC voltage.

These products are also designed in a modular fashion that can be extended to meet high ratings demand up to 550V, 6000A in a single unit, and then parallelly extendable along such units.

380V/550V, 4000A Rectifier for Navy (Outdoor Type)


  • Designed for a wide input supply range to withstand harsh tropical weather conditions
  • Can power Green Hydrogen Electrolyser Plants that use PEM or Alkaline Technology
  • These units are designed to operate in high and low temperatures without output power degradation – outdoor units up to 50°C and indoor units up to 45°C
  • Works with forced air-cooling, eliminating the use of air-conditioning (water-cooled also available on request)
  • Air-cooled or oil-cooled isolation transformers available as per requirement
  • High conversion efficiency owing to single conversion

Technical specifications


  • All spares/ services available locally for a guaranteed service life of 25 years
  • Our rectifiers are already running successfully across Indian and foreign Naval Dockyards – with some for >20 years.
  • Comprises Intuitive Touchscreen Controller integrated with Programmable Logic Controller (PLC) to achieve dynamic response, and remote operation along with data history storage facility availability
  • Rugged and time-tested Thyristor Converter Technology along with 6/12/24 pulse designs, using ‘galvanically isolated transformer’ and specially designed Inter-Phase transformers and filters. This ensures a clean DC output and high-quality input line parameters like harmonics and PF.



  • Rectifiers with IGBT Chopper also available in limited ratings
  • Available for both Indoor and Outdoor applications
  • Trolley-mounted rectifiers available for outdoor use
  • Available from 350V to 750V DC range – the unit design is modular and numbers of identical rectifiers can be connected in parallel – for built-in redundancy and expandability
  • Can be designed to work on a 415V LT supply (As shown in figure)
  • Solutions working on 6.6KV/11KV/33KV with specialised designed transformers also available
  • Other customised, specialised items like Distribution Panels also available

Contact us today to chat about the offered variations in high power and high current range.

Green hydrogen generation requires a high amount of DC power supply. Our Rectifier for electrolysis is designed for maximum electrolyzer efficiency and sustainable hydrogen production. These are high-current rectifiers that help produce clean hydrogen technology. So, if you want to establish or grow your Green Hydrogen infrastructure, specifically PEF electrolysis systems, call us today to know more!


As mentioned, we supply a variety of Rectifier technologies. To learn about the comparison between a Thyristor (SCR) controlled Rectifier vs an IGBT-Based Rectifier, check out our post on our blog:

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