Product Application Range: Special transformers for wind power, photovoltaic, flywheel, gravity, compressed air energy storage, and pumped storage energy with voltage levels up to 35kV.

Product Features:

1. High-Temperature Resistance: Industry-leading high-temperature resistance achieved with DuPont's Nomex insulation system and core seven-level temperature control technology.

Maintenance-Free: The core seven-level temperature control technology and rational selection of matching components achieve a true 30-year life design.

2. High Overload Capacity: CEEG's rectifier transformers have a 20% higher load capacity than conventional products.

3. Leak-Free: All sealing components are made of acrylic ester molded parts and undergo fluorescent, positive pressure, and negative pressure leak tests to ensure leak-free operation of transformers on-site.

4. Low Noise: Noise reduced by 3-10dB compared to national standards.

5. Variety: Variety: Product range covering the design and production of many types of rectifier transformers in the hydrogen production field.

6. Customization: Flexibly designed according to customer-specific requirements for quick response.

7. Authoritative Certification: Certified by the National Electrical Product Quality Supervision and Inspection Center

Core Technology:

1. Dry-type rectifier transformers for hydrogen production power sources provide multi-pulse output, meeting the need for a stable DC power supply for secondary-side equipment.

2. The transformer adopts wide-linear magnetic flux regulation technology, ensuring linear adjustment of secondary output voltage under constant input voltage, meeting the requirements for voltage variation of equipment.

3. The input winding adopts a fully symmetrical parallel structure, using a loaded (or no excitation) switch synchronous adjustment method to avoid circulation. Two sets of output windings adopt different connection groups (d/y), eliminating the influence of higher-order harmonics on multiple power grids, ensuring consistent phase angles for all phases, and stabilizing the DC waveform after multi-pulse rectification.

Currently, hydrogen production rectifier transformers are mainly applied in three scenarios:

1. Multi-pulse three-phase bridge thyristor rectifier system.

2. Three-phase bridge diode rectifier + IGBT chopper system.

3. Three-phase bridge PWM rectifier + DC/DC chopper system.

1. Canadian single-unit 1000m³ hydrogen production project

The single 1000m³ hydrogen production project in Canada adopts a CEEG ZHSZCB-5800/35kV hydrogen production dry-type rectifier transformer.

2. Ordos hydrogen production project

The Ordos hydrogen production project utilizes the CEEG independently developed, designed, and manufactured ZHSS-12000/35 24-pulse IGBT hydrogen production rectifier transformer.