Rectifier Systems
For over 50 years, Neeltran, part of AMSC, has manufactured some of the best rectifier systems on the market for our customers across the globe.
Overview
For over 50 years, Neeltran has sets itself apart from other manufacturers, being one of the few companies that design and manufactures their own custom rectifier-transformers (rectiformers). As such, Neeltran works closely with each customer to find the best integrationfor their site, considering any mechanical and electrical constraints. Rectiformer solutions come in a variety of cooling options and topologies. Neeltran’s air cooled rectifiers have a current rating of up to 50 kAdc per 6 pulse, at up to 3,000 Vdc. Their water-cooled rectifiers have current ratings of up to 110(220) kADC per each 6(12) pulse, at up to 6,000 VDC. Neeltran also offers small DC choppers (3 kA @ 1000 VDC or below) for torch applications. Neeltran’s water-cooled rectifiers are efficient for applications needing a small footprint. With this configuration, there is no need for transformer pits or blast walls often required at sites with oil-filled transformers.
Neeltran’s rectiformer solutions can be designed for extreme temperatures ranging from -40°C to 60°C, suiting them for harsh environments. They also offer multi-pulse systems including 6, 12, 18, 24, and more. As an option, Neeltran can provide rectiformer solutions that are pre-engineered and pre-assembled into a turnkey E-House configuration. This allows for fast and easy plug and play installation at the customer’s site. Neeltran can also include fully integrated harmonic filtration and power factor correction to compliance with IEEE 519 or other local requirements.
Neeltran leverages extensive global multi-industry experience when designing each rectiformer system. Importantly, their solutions come guaranteed to meet the customer’s specific technical and safety requirements. Neeltran provides complete ANSI and/or IEC testing, with third-party certifications available for all environments and countries upon request. Unlike other manufacturers, Neeltran offers factory testing of the fully integrated transformer and rectifier system before shipping it to the customer site. This allows for line up testing of the complete system in their actual configuration prior to shipment. This includes separate tests at full rated current and voltage. After shipment to the site, Neeltran’s committed global service team provides comprehensive technical assistance with installation, commissioning, and maintenance.
Trusted globally, Neeltran has specialized in the design and manufacturing of high power rectiformers since 1973. Many diverse applications and industries extensively utilize their solutions. These include chemical (chlorine, chlorate, pulp and paper, lithium, hydrogen, and electrochemical), metals, mining, and minerals, aluminum, oil and gas, water treatment, defense/military/aerospace, and more. Neeltran’s experienced team prides itself on their close collaboration with customers to ensure delivery of optimized high quality solutions. Importantly, Neeltran can design and build power supply systems for new greenfield sites, as well as complex retrofits for existing facilities.
Features
Neeltran, part of AMSC, provides the highest preforming high power industrial power supplies that serve our customer’s mission critical production and processes worldwide. They include the following features:
- System Selection Options:
- Rectifier Power Section
- Air cooled: current ratings up to 50 kADC per 6 pulse, at up to 3,000 VDC
- Water cooled: current ratings up to 110(220) kADC per each 6(12) pulse, at up to 6,000 VDC
- Multi-pulse systems available from 6,12,18,24 and more
- Other small DC choppers are available up to 3 kADC @ up to 2000 VDC for torch or similar applications
- Diodes, Thyristors, IGBT
- Copper / Aluminum Bus Bars
- N-1 redundant design
- Thermal Management Options:
- Air cooled
- Water cooled
- Water to water heat exchanger
- Water to air heat exchanger
- Plate or tube type heat exchanger
- Redundancy as a standard
- Other options are available
- Control Architecture:
- Neeltran proprietary SCR trigger boards
- Neeltran protection cards
- PLC Allen Bradley / Siemens (other options on request)
- Other options available on request
- Optional pre-assembled E-House, ships ready for plug and play installation. Fully integrated at the factory and includes:
- Transformer
- Rectifier
- DC Bus Bar
- DC Switches,
- Controls
Cooling and related auxiliary systems
Applications
Neeltran’s industrial power supply solutions are versatile, and custom engineered for use across a wide range of applications and industries including:
- Chemical. Used in processes like chlorine, chlorate, pulp and paper, lithium, hydrogen, and other electrochemical applications.
- Metals and Mining. Used for mining, electrowinning, extraction, plating, graphite refining, and more.
- Oil and Gas. Used for refining and exploration.
- Water Treatment.
Defense/Military. Used to support important operations in defense, and military, applications.
Benefits
Neeltran, now part of AMSC, has engineered and supplied a variety of innovative energy transformation solutions. Customers across the globe utilize Neeltran rectiformer solutions in many industries like chemical, metals, mining, pulp and paper, and defense. Manufactured in the USA, Neeltran designs and builds out power supply solutions in an ISO certified facility in New Milford, Connecticut, and complies with ANSI/IEEE, CSA, IEC, and other global standards. Rectiformer systems can integrate into existing facilities or be pre-assembled into a plug and play pad-ready enclosure. The E-House includes all components of the full rectiformer system, for quick and easy installation and startup on site. Neeltran can design and optimize each system for both new installations and retrofits, ensuring optimal reliability and performance. Neeltran’s commitment to customer satisfaction extends beyond the factory, with comprehensive onsite support for installation, commissioning, testing, and maintenance.
Certifications
AMSC focuses on delivering advanced power technologies, our products and systems are designed to meet rigorous industry standards and certifications to ensure quality and reliability.
Related services
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Startup and Commissioning
AMSC’s expertise goes well beyond the production phase. Our fully trained personnel are ready to help you get your new equipment connected, properly set up, and running efficiently. Our engineers have traveled across the globe, working with customers from various backgrounds and experiencing every possible environment.
Maintenance and Repair
AMSC products are available for purchase as spare or replacement parts. We offer tailor-made maintenance packages to ensure that the equipment operates efficiently, which includes yearly inspections, preventive maintenance and repair services from our technical and engineering experts. Additionally, upgrade or retrofit options to address part obsolescence, enhance system performance, design, and software, and support long-term cost savings are available to all our customers.
On-Call and Onsite Assistance
For on-call and onsite assistance, AMSC’s dedicated team is there to take your call. We work around the clock, ensuring that you have the help you need whenever you need it. AMSC offers global, remote support anytime, regardless of your time zone.
