For Hydrogen Energy Oil-Immersed Rectifier Transformer
A high-reliability rectifier transformer for hydrogen production processes, offering 24/36/48 pulses (expandable to 96 pulses). It adopts high-temperature hybrid insulation and a high thermal-resistance design, supports high-overload operation, and provides a stable rectifier power front end for medium and large hydrogen production plants.
Product Introduction
Key Specifications
Rated Capacity
500kVA - 10,000kVA
Rated Voltage
Primary side 35kV, 10kV
Insulation Class
Class C, Class B, Class A
Temperature rise limit
Oil temperature rise ≤60K, winding temperature rise ≤65K
Cooling Method
Forced oil circulation with air cooling, or natural oil circulation with self cooling
Applications
Large-scale hydrogen production
Medium and large water electrolysis plants, focusing on overload capacity and stable output
Renewable hydrogen production
Base-scale wind/solar hydrogen production, emphasizing long-term reliable operation
Chemical industrial parks
Coupling of hydrogen production and hydrogen use in parks, focusing on safety and O&M interfaces
Product Overview
- Hybrid insulation system: mixed insulation combining Class C/B/A thermal ratings, suited to high-temperature operating conditions
- Nomex® insulation: high-temperature resistant, flame-retardant and eco-friendly, with stable performance
- Seven-level temperature control system: multi-dimensional monitoring and regulation for more stable operation
- High-temperature and high-load capability: optimized structure for demanding continuous operation
- Environmentally friendly, safe materials: low smoke and low hazard for greater peace of mind
- Custom hydrogen solutions: matched to hydrogen production loads and temperature field requirements
Product Features
High-temperature resistance
Based on the DuPont Nomex® insulation system and seven-stage temperature control technology, it offers industry-leading high-temperature resistance for high-load operating conditions.
Maintenance-free design
Seven-stage temperature control technology and high-quality matched components ensure the equipment's service life matches its design life, truly achieving 30 years of maintenance-free operation.
High overload capability
The rectifier transformer delivers 20% higher load capacity than conventional products, supporting higher load demands with superior performance.
Leak-free guarantee
High-quality acrylate seals, combined with fluorescent detection and positive/negative pressure leak testing, ensure absolutely no leakage during operation.
Ultra-low noise
Operating noise is 3–10 dB lower than the national standard, making it quieter and more eco-friendly for noise-sensitive locations.
Full product range
The product line covers the design and production of all types of rectifier transformers for hydrogen production, meeting diverse application needs.
Standards and certifications
GB/T 1094.1-2013
Power Transformers – Part 1: General
GB/T 6451-2015
Technical parameters and requirements for three-phase oil-immersed power transformers
IEC 60076 series
International Standards for Power Transformers
GB 2536-2011
Transformer Oil Standards
GB/T 15164-2022
Loading guide for oil-immersed power transformers
Technical Advantages
R&D cloud platform
Integrates electromagnetic optimization design, parametric drawing, performance analysis, structural optimization, and automatic drawing output for transformers, enabling shared transformer design resources and search, modification, and version control of all kinds of data.
Simulation Analysis
Flow field, temperature field, electric field, leakage magnetic field, wave process, and short-circuit force. The R&D and design of every product series are verified through flow field and temperature field simulation analysis to determine the winding average temperature rise and hot-spot temperature, ensuring product performance.
Smart O&M platform
By collecting key data such as transformer temperature, current, voltage, vibration, and grid harmonics, it enables online power quality analysis and fault alarms, and can be installed on mobile phones.
