Product Details:
Oil-Immersed Cooling: Efficient heat dissipation ensures stable operation from -25°C to +45°C.
Energy Efficiency: Complies with energy efficiency Class I, achieving ≤20% reduction in no-load loss.
Corrosion Protection: Features a sealed tank design with an anti-rust coating, perfect for outdoor environments.
Easy Maintenance: Removable inspection covers and oil-level indicators for simple upkeep.
Customizable Options: Available with surge protection, tap changers, and bushings for tailored solutions.
Technical Specifications
**500 kVA Transformer Specifications and Data Sheet**
| Model | S11-500 kVA-11/0.4KV |
| Type | Oil Immersed Distribution Transformer |
| Standard | IEC60076 |
| Rated Power | 500 kVA |
| Frequency | 50 HZ |
| Phase | Three |
| Cooling Type | Oil cooled |
| Primary Voltage | 11 kV |
| Secondary Voltage | 0.4 kV |
| Winding Material | Copper |
| Vector Group | Dny11 |
| Impedance | 4% |
| Tap Changer | NLTC |
| Tapping Range | ±2*2.5% |
| No Load Loss | 0.68KW |
| Load Loss | 5.15KW |
| Accessories | Standard Configuration |
FAQs
Q1: What is the price of a 500kVA oil-immersed transformer?
A: Prices start at $8,000–$12,000, depending on voltage configuration, certifications, and delivery terms. Bulk orders may qualify for discounts.
Q2: Why choose an oil-immersed transformer over a dry-type transformer?
A: Oil-immersed transformers offer higher overload capacity, longer lifespan, and lower initial costs, making them ideal for high-load, outdoor applications.
Q3: How often does the oil need replacement?
A: Mineral oil typically lasts 10–15 years under normal conditions. Regular testing every 2–3 years ensures optimal performance.
Q4: Is this transformer explosion-proof?
A: Yes, it includes pressure relief devices and fire-resistant materials for safe operation in case of abnormal conditions.
Q5: What certifications does the S11-M series have?
A: It complies with IEC, IEEE, and CE standards. Optional KEMA or UL certifications are also available.
