Ultra-Durable 35kV Class Distribution Transformer - Low Loss, High Demand Power Solutions from China Suppliers & Factory
Product Parameter
| Parameter | Specification |
| Rated Voltage | 35kV |
| Rated Capacity | 3150kVA – 31500kVA |
| Secondary 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 |
| Insulation Class | Class F / Class H |
| Impedance Voltage | 7% – 10% |
| No-Load Loss | Low-loss silicon steel core design |
| Load Loss (75℃) | Optimized efficiency performance |
| Short-Circuit Strength | High mechanical stability |
| Standards | IEC 60076 / GB1094 / GB/T6451 / GB20052 |
Product Applications
Regional Power Grid and Substation Distribution
The 35kV Class Distribution Transformer is extensively used in regional substations and power distribution networks. It steps down voltage from 35kV to 6–11kV, ensuring efficient transmission to end users. With a maximum capacity of 31.5MVA, it supports large-scale grid operations and reduces energy losses by approximately 10%–15%, improving the overall efficiency and reliability of utility systems.
Heavy Industry and Continuous Production Facilities
This transformer is ideal for heavy industrial sectors such as metallurgy, mining, petrochemical plants, and large-scale manufacturing. It operates reliably under continuous high-load conditions and can tolerate short-term overloads of up to 120%, ensuring uninterrupted production. Its strong short-circuit resistance helps protect equipment and maintain stable operations even under fault conditions.
Infrastructure Projects and Renewable Energy Systems
The transformer is widely used in infrastructure projects including airports, railways, ports, and renewable energy plants such as wind and solar farms. It provides stable voltage output under fluctuating loads and environmental conditions. Designed to operate in temperature ranges from -40°C to +45°C, it ensures reliable performance in outdoor and remote installations.
Product Advantages
Low-Loss Core Technology
Reduces no-load loss and improves overall energy efficiency
Reinforced Structural Design
Enhances durability and resistance to transport and operational stress
High Short-Circuit Resistance
Ensures stability under electrical fault conditions
Low Noise Operation
Optimized design reduces vibration and acoustic emissions
Wide Capacity Range
Supports up to 31.5MVA, suitable for large-scale applications
Long Service Life
Designed for more than 30 years of stable operation
Key Benefits
The 35kV Class Distribution Transformer is a robust, efficient, and reliable power distribution unit designed for modern medium-voltage networks. Its advanced design, strong mechanical structure, and low-loss performance make it suitable for utility grids, industrial operations, and infrastructure projects.
With long service life, high efficiency, and compliance with international standards, it offers a dependable and cost-effective choice for high-demand power distribution systems.
FAQ
What makes a 35kV transformer suitable for large-scale distribution?
Its high voltage rating and large capacity allow it to efficiently handle medium-voltage transmission over long distances.
Can this transformer handle sudden load changes?
Yes, it is designed to manage load fluctuations and maintain stable performance under varying demand conditions.
What cooling methods are available for this transformer?
It supports both natural oil cooling (ONAN) and forced air cooling (ONAF) depending on operational needs.
Is it suitable for renewable energy applications?
Yes, it is commonly used in wind and solar power systems to stabilize and transmit generated energy.
What contributes to its long service life?
High-quality insulation materials, robust mechanical design, and optimized thermal performance all extend its lifespan.