China 13.5kV Oil-Immersed Power Transformer - High Efficiency, Durable, and Reliable from Trusted Suppliers and Factory
Product Parameter
| Parameter | Specification |
|---|---|
| Rated Capacity | 30kVA – 2500kVA |
| High Voltage | 13.5kV |
| Low Voltage | 0.4kV (customizable) |
| Frequency | 50Hz / 60Hz |
| Tap Range | ±5% or ±2×2.5% |
| Connection Group | Dyn11 / Yyn0 |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Insulation Class | Class F / Class H |
| No-Load Loss | 80W – 1650W (depending on capacity) |
| Load Loss (75℃) | 650W – 21500W |
| No-Load Current | 0.4% – 2.0% |
| Impedance Voltage | 4% – 6% |
| Insulation Level | LI 75kV / AC 35kV |
Product Applications
Medium-Voltage Utility Distribution Systems
The 13.5kV oil-immersed transformer is commonly used in regional and municipal power distribution networks where non-standard voltage levels are required. It ensures stable voltage conversion and minimizes transmission losses.
Industrial Manufacturing & Processing Plants
In heavy industries such as metallurgy and chemical processing, this transformer supports continuous operation under fluctuating loads and can handle temporary overloads up to 120%–130%.
Renewable Energy Integration Projects
For solar farms and wind power systems, the 13.5kV transformer plays a critical role in voltage regulation and grid connection. It supports stable operation in extreme climates from -40°C to +45°C.
Product Advantages
Stable System Compatibility
Designed for 13.5kV power systems, suitable for various engineering applications.
Reliable Finished Quality
Standardized factory production ensures consistency and long-term stable operation.
Standardized Manufacturing Quality
Unified factory production process ensures consistent and stable product quality.
Robust Integrated Structure
Finished all-in-one design with compact appearance and reliable overall durability.
Stable Operating Performance
Smooth and reliable performance in finished condition for long-term power system use.
Flexible Configuration
Supports multiple capacities, voltage options, and connection groups.
Key Benefits
The 13.5kV oil-immersed power transformer is a reliable and efficient solution for modern medium-voltage distribution systems. Its ability to handle customized voltage requirements, combined with low losses and long service life, makes it a preferred choice for utilities, industrial users, and renewable energy developers.
With its proven design and stable performance, it ensures consistent power delivery, improved energy efficiency, and reduced long-term operating costs.
Frequently Asked Questions
Why is 13.5kV used instead of standard 10kV or 11kV?
13.5kV is often required in specific regional grids or industrial systems where customized voltage levels are needed for compatibility with existing infrastructure.
Can this transformer be customized for different voltage outputs?
Yes, the low voltage side and tap range can be adjusted based on project requirements, including different voltage ratios and configurations.
What type of cooling system does it use?
It uses the ONAN cooling method, where oil circulates naturally to dissipate heat without external pumps or fans.
Is it suitable for high-altitude installations?
Yes, it can be designed for high-altitude environments with appropriate insulation and cooling adjustments.
What industries typically use 13.5kV transformers?
They are commonly used in utilities, industrial manufacturing, mining, renewable energy, and infrastructure development projects.
What is the efficiency level of these transformers?
These transformers ensure stable voltage conversion and minimize transmission losses, achieving efficiency levels above 98% under rated conditions.