High-Efficiency 13.5kV Oil-Immersed Power Transformer - China Suppliers & Factory for Industrial Applications
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
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, achieving efficiency levels above 98% under rated conditions. It is suitable for substations, feeder lines, and rural electrification projects.
In heavy industries such as metallurgy, cement production, and chemical processing, consistent and reliable power supply is essential. This transformer supports continuous operation under fluctuating loads and can handle temporary overload conditions up to 120%–130%, ensuring uninterrupted production and reducing downtime in high-demand industrial environments.
For solar farms, wind power systems, and hybrid energy stations, the 13.5kV transformer plays a critical role in voltage regulation and grid connection. It improves power quality through optimized connection groups and supports stable operation in extreme climates ranging from -40°C to +45°C, making it ideal for outdoor renewable installations.
Product Advantages
Designed for 13.5kV power systems, suitable for various engineering applications
Standardized factory production ensures consistency and long-term stable operation
Unified factory production process ensures consistent and stable product quality
Finished all-in-one design with compact appearance and reliable overall durability
Smooth and reliable performance in finished condition for long-term power system use
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.
FAQ
13.5kV is often required in specific regional grids or industrial systems where customized voltage levels are needed for compatibility with existing infrastructure.
Yes, the low voltage side and tap range can be adjusted based on project requirements, including different voltage ratios and configurations.
It uses the ONAN cooling method, where oil circulates naturally to dissipate heat without external pumps or fans.
Yes, it can be designed for high-altitude environments with appropriate insulation and cooling adjustments.
They are commonly used in utilities, industrial manufacturing, mining, renewable energy, and infrastructure development projects.