Silicon Steel Core for Oil Immersed Transformer 500 kVA Price
05-08 2025 | By:
1. Definition of Three-Phase Transformer Cores
A three-phase transformer core is the magnetic circuit component that facilitates electromagnetic induction between primary and secondary windings. Constructed from high-permeability materials like cold-rolled oriented silicon steel sheets (CRNGO) or non-oriented silicon steel sheets (CRNOG), the core ensures efficient magnetic flux distribution while minimizing energy losses. The core structure typically includes core columns (for winding placement) and yokes (for magnetic circuit closure), arranged in configurations like core-type or shell-type .
500kVA Transformer Iron Core
2. Key Models and Parameters
Material Specifications
- Cold-Rolled Oriented Silicon Steel (CRNGO):
- Model: 30Q130-35Q165, 27QG100-35QG135
- Thickness: 0.35 mm (optimizes magnetic properties)
- Permeability: High in rolling direction (anisotropic)
- Losses: Low (e.g., 0.5–1.0 W/kg at 50 Hz)
- Non-Oriented Silicon Steel (CRNOG):
- Model: 35W230-50W350
- Applications: Distribution transformers requiring cost-effective solutions
Oil-Immersed Transformer Core-China factory
Core Configurations
| Type | Structure | Advantages |
|---|---|---|
| Stacked Core | Laminated sheets with direct or stepped joints | Easy manufacturing, low cost |
| Wound Core | Continuous strip winding | Reduced air gaps, lower losses |
| Step-Lap Core | Tiered design for large transformers | Compact size, efficient flux path |
3. Applications in Dry-Type and Oil-Immersed Transformers
Dry-Type Transformers
- Core Material: CRNGO (e.g., 30Q130) for low-noise and low-loss operation.
- Design Features:
- Air-cooled, no insulating oil required.
- Suitable for indoor environments (e.g., data centers, hospitals).
- Example: ZTELEC’s dry-type cores use FR4 epoxy resin insulation for enhanced durability
Oil-Immersed Transformers
- Core Material: CRNGO with step-lap joints (e.g., 27QG100) for high capacity.
- Design Features:
- Oil-filled tanks for heat dissipation.
- Cooling Channels: Integrated into core columns for efficient thermal management.
- Example: ZTELEC’s oil-immersed cores comply with IEC 60076 standards, ensuring reliability in harsh conditions
500kVA Transformer Iron Core
4. ZTELEC Electric Technology (Zhengzhou) Co., Ltd.
Leading Supplier of Advanced Transformer Cores
- Capabilities:
- Customized core designs for 35kV transformers.
- State-of-the-art facilities for non-oriented/nanocrystalline cores.
- Certifications: ISO 9001, IEC, and compliance with GB/T 2529 (China)
- Product Range:
- Dry-Type Cores: For renewable energy systems, industrial machinery.
- Oil-Immersed Cores: For power grids, substations.
- Specialty Cores: Non-magnetic alloys for medical MRI applications.
5. Why Choose ZTELEC?
- Technical Excellence: Over 10 years of R&D in soft magnetic materials.
- Global Reach: Export to 30+ countries, including Europe and Southeast Asia.
- Customer Support: 24/7 technical assistance and 3-year warranty.
Contact Us Today!
Email:[email protected] | whatsapp/wechat: +86-157-1674-9170 | Website: https://www.hnztelec.com/
Transform Your Power Solutions with ZTELEC Cores!
Note: For detailed technical specifications or customization inquiries, visit our website or contact our sales team.
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