Technical Parameters & Specification Standards of 500 kVA Cast Resin Dry Type Transformer
Mar 18, 2026
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In modern power distribution systems, the 500 kVA cast resin dry type transformer plays a crucial role in ensuring safe, efficient, and environmentally friendly electricity supply.
At GNEE, we are a professional 500 kVA dry type transformer manufacturer with extensive experience in global projects, delivering high-performance transformers that comply with international standards such as IEC and ANSI.
Whether you are planning to buy 500 kVA dry type transformer, evaluate 500 kVA dry type transformer specifications, or select the right configuration for your project, understanding the technical parameters and standards is essential.
500 kVA Cast Resin Dry Type Transformer Specifications Overview
A 500kVA cast resin dry type transformer is typically designed for medium-voltage distribution systems and offers high safety, reliability, and low maintenance.
Core Technical Parameters of 500 kVA Dry Type Transformer
| Parameter | Standard Value / Range |
|---|---|
| Rated Capacity | 500 kVA |
| Phase | Three-phase |
| Frequency | 50Hz / 60Hz |
| Primary Voltage | 6kV / 10kV / 11kV / 13.8kV |
| Secondary Voltage | 400V / 415V / 480V |
| Cooling Method | AN / AF (Air Natural / Air Forced) |
| Insulation Class | F / H |
| Vector Group | Dyn11 / Yyn0 |
| Impedance Voltage | 4% – 6% |
| Temperature Rise | 100K – 125K |
| Protection Level | IP00 / IP20 / IP23 |
These values may vary depending on customization.
Transformer factory
500 kVA Dry Type Transformer Specifications According to IEC Standards
The 500 kVA dry type transformer specifications are primarily governed by international standards to ensure safety and performance.
IEC Standards for Cast Resin Dry Type Transformer 500kVA
Key applicable standards include:
- IEC 60076 – General power transformer standard
- IEC 60076-11 – Dry-type transformer specific requirements
- IEC 60085 – Insulation thermal classification
These standards define:
- Dielectric strength
- Temperature limits
- Insulation system reliability
- Testing procedures
ANSI & GB Standards Compatibility
In addition to IEC, many 500 kVA dry type transformer supplier products also comply with:
- ANSI/IEEE standards (North America)
- GB/T standards (China market)
This ensures global adaptability for export projects.
Electrical Design Parameters of 500 kVA Cast Resin Dry Type Transformer
Understanding electrical parameters is key when selecting a custom 500 kVA dry type transformer.
Voltage and Tapping Configuration
- Standard tapping range: ±2×2.5%
- Tap changer type: Off-load tap changer (OLTC optional)
- Ensures voltage regulation stability
Losses and Efficiency
Typical values for a dry type transformer 500kVA:
- No-load loss: ~1.1 kW
- Load loss: ~4.8–5 kW
- Efficiency: ≥98%
These low-loss characteristics support energy-saving operation.
cast resin transformer coil detail
Mechanical & Thermal Design of 500 kVA Dry Type Transformer
Core and Winding Structure
- Core: Grain-oriented silicon steel
- Winding: Copper or aluminum foil
- Encapsulation: Vacuum epoxy resin casting
This structure provides:
- High short-circuit strength
- Excellent insulation performance
- Long service life
Cooling and Temperature Control
Cooling types:
- AN (natural air cooling)
- AF (forced air cooling with fans)
Advanced models include:
- PT100 temperature sensors
- Intelligent temperature controllers
- Over-temperature alarms and trip systems
Environmental & Protection Specifications
A cast resin dry type transformer 500kVA is designed for harsh environments.
Environmental Classes
- Climatic Class: C2 (cold resistance)
- Environmental Class: E2 (pollution resistance)
- Fire Behavior Class: F1 (self-extinguishing)
Installation Conditions
- Altitude: ≤1000m (standard)
- Ambient temperature: -25°C to +40°C
- Indoor / outdoor (with enclosure)
These features make it ideal for 500 kVA dry type transformer application in:
- Data centers
- Hospitals
- Solar power plants
- Industrial facilities
Transformer installed in data center
Advantages of 500 kVA Cast Resin Dry Type Transformer in Technical Performance
The advantages of 500 kVA dry type transformer are reflected in its technical design:
Key Technical Advantages
- Fire-resistant and explosion-proof
- Moisture and dust resistant
- Low partial discharge
- High dielectric strength
- Minimal maintenance requirements
Why Engineers Prefer Dry Type Transformers
Compared to oil-filled units:
- No oil leakage risk
- Lower installation cost in buildings
- Safer for indoor environments
This is why many buyers actively search for 500 kVA dry type transformer for sale for commercial and infrastructure projects.
How to Select the Right 500 kVA Dry Type Transformer Supplier
When sourcing a 500 kVA dry type transformer supplier, consider:
Key Evaluation Criteria
- Compliance with IEC/ANSI standards
- Manufacturing experience
- Customization capability
- Testing and certification (ISO, KEMA, CE)
- Delivery and after-sales service
At GNEE, we provide:
- Full custom 500 kVA dry type transformer solutions
- Competitive 500 kVA dry type transformer price
- Fast global delivery
- Technical support for project design
Conclusion: Choose the Right 500 kVA Cast Resin Dry Type Transformer for Your Project
Understanding the Technical Parameters & Specification Standards of 500 kVA Cast Resin Dry Type Transformer is essential for selecting a reliable and efficient power solution. From IEC compliance to advanced insulation systems and low-loss performance, these transformers are engineered to meet modern power distribution demands.
If you are planning to buy 500 kVA dry type transformer, GNEE is your trusted partner. Contact us today for detailed specifications, competitive pricing, and customized solutions-send your inquiry now and power your project with confidence.
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