High-Efficiency 35kV Class Distribution Transformer - China Suppliers & Factory for Utility and Industrial Power Systems
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 / H |
| Impedance Voltage | 7% – 10% |
| No-Load Loss | Optimized low-loss design |
| Load Loss (75℃) | High-efficiency performance |
| Short-Circuit Resistance | High mechanical strength |
| Standards | IEC 60076 / GB1094 / GB/T6451 / GB20052 |
Product Applications
Utility Substations and Regional Power Grids
The 35kV Class Distribution Transformer is widely used in utility substations and regional distribution networks to step down voltage from 35kV to 6–11kV levels. With capacity options reaching 31.5MVA, it supports stable power transmission across urban and rural grids. Its low-loss design improves energy efficiency by reducing transmission losses by up to 10–15%, making it ideal for long-distance distribution systems.
Large-Scale Industrial Manufacturing and Processing Plants
In heavy industries such as steel plants, mining operations, petrochemical facilities, and cement production lines, this transformer delivers reliable performance under continuous high-load conditions. It supports load fluctuations and short-term overload capacity of up to 120%, ensuring uninterrupted operation of critical equipment. Its strong short-circuit resistance enhances system stability in demanding industrial environments.
Infrastructure Projects and Renewable Energy Integration
The transformer is widely deployed in large infrastructure projects such as airports, railways, ports, and renewable energy plants including wind and solar farms. It provides stable voltage output and efficient energy transmission under variable load conditions. Designed to operate in environments ranging from -40°C to +45°C, it ensures long-term reliability in outdoor and remote installations.
Product Advantages
Advanced Core Design
Reduces no-load loss and improves overall energy efficiency
Heavy-Duty Mechanical Structure
Reinforced clamping system enhances durability and transport resistance
Excellent Short-Circuit Strength
Designed to withstand high electrical and mechanical stress
Low Noise Performance
Optimized structure minimizes vibration and acoustic emissions
High Load Capacity
Supports up to 31.5MVA for large-scale power systems
Long Service Life
Designed for over 30 years of stable operation
Key Benefits
The 35kV Class Distribution Transformer is a reliable, energy-efficient, and high-performance power distribution unit designed for medium-voltage systems. Its robust construction, low-loss performance, and strong adaptability make it suitable for utility grids, industrial facilities, and infrastructure projects.
With long service life, stable operation, and compliance with international standards, it provides a dependable and cost-effective choice for modern power distribution networks.
FAQ
What industries benefit most from 35kV distribution transformers?
Industries such as utilities, mining, steel production, and large infrastructure projects benefit most due to their high power demand.
How does the transformer handle voltage fluctuations?
It includes adjustable tap settings that help regulate output voltage and maintain stable power delivery.
What cooling options are available for this transformer?
It supports natural oil cooling (ONAN) and forced air cooling (ONAF) for enhanced thermal performance.
Can this transformer be used in renewable energy systems?
Yes, it is suitable for wind and solar power plants, ensuring stable energy transmission to the grid.
What factors affect transformer lifespan?
Operating load, environmental conditions, maintenance practices, and insulation quality all impact the transformer’s service life.
What standards does this 35kV transformer comply with?
This transformer is designed and manufactured in compliance with international standards including IEC 60076, GB1094, GB/T6451, and GB20052.