Advanced Low-Loss 35kV Class Distribution Transformer from China Suppliers & Factory for High-Load Power Systems
Product Parameter
| Parameter | Specification |
|---|---|
| Rated Voltage | 35kV |
| Rated Capacity | 3150kVA – 31500kVA |
| Low Voltage | 6.3kV / 6.6kV / 10.5kV / 11kV |
| Frequency | 50Hz |
| Tap Range | ±5% or ±2×2.5% |
| Connection Group | Yd11 / YNd11 |
| Cooling Method | ONAN / ONAF (optional) |
| Insulation Class | Class F / Class H |
| No-Load Loss | Optimized low-loss design |
| Load Loss (75℃) | High-efficiency performance |
| Impedance Voltage | 7% – 10% |
| Short-Circuit Strength | High mechanical strength design |
| Standards | GB1094 / IEC 60076 / GB/T6451 / GB20052 |
Product Applications
Utility Grid and Regional Substation Systems
The 35kV Class Distribution Transformer is widely used in utility substations and regional power grids for medium-voltage distribution. It efficiently steps down voltage from 35kV to 6–11kV levels, ensuring stable electricity transmission for urban and rural networks. With capacity options up to 31.5MVA, it supports large-scale grid infrastructure and improves energy efficiency by reducing transmission losses.
Heavy Industrial and Energy-Intensive Operations
This transformer is ideal for industries such as steel manufacturing, mining, petrochemical plants, and cement production. Its reinforced structure provides strong resistance to short circuits and mechanical stress, allowing it to operate under continuous heavy loads. It can handle load fluctuations and short-term overloads of up to 110%–120%, ensuring stable operation of critical industrial equipment.
Large Infrastructure and Renewable Energy Projects
The transformer is widely applied in infrastructure projects such as airports, railways, ports, and renewable energy systems including wind and solar farms. It ensures stable voltage output and efficient energy transmission under varying environmental conditions. Designed to operate in temperatures from -40°C to +45°C, it is suitable for both outdoor installations and remote project locations.
Product Advantages
Advanced Structural Design
Reinforced frame structure improves mechanical strength and transportation reliability
Low Loss & High Efficiency
Optimized core reduces energy loss, meeting modern energy efficiency standards
Strong Short-Circuit Resistance
Enhanced clamping system increases resistance to electrical and mechanical stress
Long Service Life
Designed for over 30 years of stable operation under standard conditions
Reliable Performance
Stable operation under continuous load and harsh environmental conditions
Flexible Cooling Options
Supports ONAN and ONAF cooling for different load requirements
Key Benefits
The 35kV Class Distribution Transformer is a high-performance, energy-efficient, and durable power distribution unit designed for modern medium-voltage systems. Its advanced design, strong short-circuit resistance, and low-loss performance make it suitable for utility grids, industrial operations, and large infrastructure projects.
With long service life, reliable operation, and compliance with international standards, it provides a cost-effective and dependable choice for demanding power distribution applications.
FAQ
What makes a 35kV class transformer suitable for large-scale power systems?
Its high voltage rating and large capacity range allow it to efficiently handle medium-voltage distribution in large infrastructure and industrial applications.
How does this transformer improve energy efficiency?
It uses optimized core materials and advanced design to reduce no-load and load losses, improving overall system efficiency.
Can it withstand short-circuit conditions?
Yes, it is designed with reinforced mechanical structure to handle short-circuit stresses and maintain operational stability.
Is it suitable for harsh environments?
Yes, it operates reliably in a wide temperature range and can be installed in outdoor and industrial environments.
What standards does the transformer comply with?
It complies with international and national standards such as GB1094, IEC 60076, and energy efficiency regulations.
What cooling methods are available for this transformer?
It supports ONAN (Oil Natural Air Natural) and ONAF (Oil Natural Air Forced) cooling methods to meet different load and capacity requirements.