Durable 10kv 400kVA Iron Core for Dry-Type Transformer of Efficient Power Management
Oct 15, 2025
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Iron Core for Transformer
Designed for distribution transformers, this 400kVA 10kV laminated core is made from CRGO steel coils for superior performance. Available in IEC or ANSI standards, it provides a cost-effective and rugged solution for medium voltage applications. Experience superior thermal performance, minimal losses and extended service life even under the most demanding load conditions.
Compact and rugged, this core is ideal for applications such as utility networks, industrial plants and commercial facilities that require a stable and continuous power supply.
400kVA 10kV laminated core Feature
- Rated voltage: 10kV (expandable to 35kV) - designed to meet a wide range of power needs.
- Power capacity: up to 400kVA - ensures strong and reliable power handling capabilities.
- Material: high-quality cold-rolled grain-oriented silicon steel.
- Manufacturing method: stacked silicon steel sheets.
- Safe and reliable: stabilized by specific types of core clips/lifting ears/pull rods, etc.
- Paint: red paint for oil-immersed transformers; blue paint for dry-type transformers.
- Installation: ideal for indoor use, with optional enclosure for outdoor applications.
- Standards: designed and rigorously tested according to IEC, ANSI or customized standards to ensure first-class quality and performance.
- Applications: widely used in public buildings, commercial complexes, renewable energy systems and industrial facilities, providing versatile power solutions.
laminated core advantages
- Low loss: The stacked thin sheets with insulation between them significantly reduce electrical energy waste, making them especially suitable for power frequency equipment.
- Strong adaptability: They can be made into various shapes and used in everything from small household appliance transformers to high-power power transformers.
- Easy mass production: With mature processing technology and controllable material costs, they are suitable for mass production and offer good cost-effectiveness.
Transformer core specification
Custom configurations available upon request, ensuring flexibility to suit specific needs.
Drawings & Dimensions
Detailed CAD drawings and dimensional diagrams are readily available upon inquiry. Our engineering team is poised to offer tailored designs to meet your specific project requirements.
GNEE Featured Products
Gnee provides premium iron cores to the world. Our cores can be selected in a wide range of materials, shapes, applications, manufacturing techniques, etc., to meet customers' diverse demands. Explore our wide product range now~
Manufacturing Process
1. Raw Material Sourcing
2. Slitting
3. Punching
4. Laminating
5. Core Forming
6. testing
GNEE EC
Founded in 2008 and located in Anyang in China, Gnee Electric is a high-tech enterprise specializing in researching and manufacturing iron core products.
The company currently occupies over 20,000 square meters and employs more than 200 people, including over 80 professionals. After more than 18 years of development, we have built our own magnetic material production base and independently develope, produce, and sell various kinds of iron cores. The common types include silicon steel cores, motor cores, transformer cores, toroidal iron cores, special-shaped cores, custom cores, and others. Our cores are widely applied in different sectors including transformers, motors, mutual inductors, voltage stabilizers, welding machines, magnetic amplifiers, and instrumentation, providing diverse core solutions to global customers.
30+
Types of Products
18k+
Happy Clients
Why Choose GNEE EC?
GNEE EC was founded in 2008, which is a National High-tech Enterprise & Famous Brand Enterprise in China, developing into a professional manufacturer and supplier of high-quality iron cores.
18+
Over 18 years of success in the iron core industry;
National High-tech Enterprise & Famous Brand Enterprises in China;
200+
Over 200 employees;
The R&D team has more than 80 experienced engineers and the production team has more than 100 skilled staffs;
35+
Annual turnover up to 35 million dollor per year;
Owns many sets of highly automatic winding, annealing, and assembling machines;
1,000+
Over 1000 customers in domestic and overseas markets;
core Products are exported to more than 70 countries in the world;
Gnee Iron Core Factory Overview
Meet Our Sales Manager
"The Core of the Iron Core, the Power of Leadership" - See Our Great Decision-Makers Deeply Engaged in the Magnetic Materials Industry.
Edison Zhang
CEO
Kelly Zhang
General Manager
Alex Cao
Sales Manager
Industries Served
Automobile Industry
New Energy
Transformer Applications
Our Mission
Strive To Create world-class Iron core brand
With 18 Years of industry experience, we focus on the research, development, and manufacturing of high-quality iron cores for electricity, industrial control, new energy, and automotive markets