Ultra-Low Loss Hi-B Silicon Steel for ±800kV HVDC Converter Transformers

Name: "Ultra-Low Loss Hi-B Silicon Steel for ±800kV HVDC Converter Transformers"
Rating: 5 (179 reviews)

Quantity:

SKU: 2724311094

Model: 20-65

Product Details

url-slug: ultra-low-loss-hib-silicon-steel-hvdc-converter-transformer

Ultra-Low Loss Hi-B Silicon Steel for ±800kV HVDC Converter Transformers

This high magnetic induction grain-oriented silicon steel (Hi-B) is engineered for the demanding requirements of ultra-high voltage direct current (HVDC) projects, such as the ±800kV converter transformers in Brazil. With high magnetic flux density ≥1.92T and iron loss lower than 0.85W/kg, it enables ultra-long-distance, large-capacity, low-loss power transmission.

Key Selling Points

High magnetic flux density ≥1.92T enhances transformer efficiency, reducing energy losses.
Iron loss <0.85W/kg is optimal for minimizing operational losses in HVDC systems.
Designed for high-temperature, high-humidity tropical environments (30-40°C, humidity 80%-90%).
Proven in ±800kV UHVDC project Phase II in Belém Mountain, Brazil, with 14 converter transformers.
Supports bipolar operation at ±800kV/4000MW for long-term continuous use.

Technical Specifications

Parameter	Value
Thickness	0.20mm - 0.65mm (range 20-65)
Iron Loss (P1.7/50)	<0.85 W/kg
Magnetic Flux Density	≥1.92T
Silicon Content	3.0% - 3.2%

Models and Options

Grades within 20-65 range, customizable for specific HVDC converter transformer core designs.

Materials and Structure

Grain-oriented silicon steel with high magnetic induction, containing iron (Fe), silicon (Si) 3.0-3.2%, and elements like Al and Mn, with strict impurity control for Hi-B properties.

Applications

Core material for converter transformers in HVDC projects, enabling efficient long-distance power transmission.

Case Study

Phase II of the ±800kV Ultra-High Voltage Direct Current Project in Belém Mountain, Brazil, uses this material in converter transformers to transport hydropower from north to southeast Brazil, operating in high humidity and thunderstorm-prone environments.

FAQ

What is the typical iron loss?

Iron loss is lower than 0.85W/kg, ensuring low operational losses.

Can it withstand high humidity?

Yes, it is designed for high-temperature, high-humidity tropical environments.

Is it suitable for ±800kV projects?

Yes, it has been used in a real ±800kV HVDC project.

What is the magnetic flux density?

It is ≥1.92T, enabling high efficiency.

Inquiry Information

MOQ: 25T

Delivery: EXW/FOB/CIF

Payment: 30/70

Contact: sales-01@hlslind.com

Product Images

Hi-B silicon steel for converter transformer