High-Reliability Low-Noise 35kV Class Distribution Transformer from China Suppliers and Factory for Heavy-Duty Power Networks
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 | Optimized low-loss core design |
| Load Loss (75℃) | High-efficiency performance |
| Short-Circuit Strength | Reinforced mechanical structure |
| Standards | IEC 60076 / GB1094 / GB/T6451 / GB20052 |
Product Applications
Utility Distribution Networks and Power Substations
The 35kV Class Distribution Transformer is widely used in utility substations for voltage conversion from 35kV to 6–11kV. With capacity options up to 31.5MVA, it supports large-scale power transmission and distribution systems. Its low-loss design can reduce overall energy loss by approximately 10%–15%, ensuring improved grid efficiency and stable electricity supply across urban and rural areas.
Heavy Industrial Facilities and Continuous Load Environments
This transformer is ideal for industries such as steel production, mining, cement plants, and petrochemical processing. It is designed to operate under continuous heavy loads and can handle short-term overloads of up to 120% capacity. Its high short-circuit resistance ensures reliable performance and protects equipment during sudden electrical disturbances in demanding industrial environments.
Infrastructure Projects and Renewable Energy Integration
The transformer is widely applied in infrastructure projects including airports, railways, ports, and renewable energy installations such as solar and wind farms. It provides stable voltage output under fluctuating loads. Designed to operate within a temperature range of -40°C to +45°C, it ensures reliable outdoor performance in diverse environmental conditions and remote locations.
Product Advantages
Low-Loss Core Technology
Improves energy efficiency and reduces operating costs
High Structural Strength
Reinforced frame enhances durability and transport resistance
Excellent Short-Circuit Resistance
Ensures stability under fault conditions
Low Noise Design
Minimizes vibration and noise for improved operational environment
High Capacity Capability
Supports up to 31.5MVA for large-scale applications
Long Service Life
Designed for over 30 years of reliable performance
Key Benefits
The 35kV Class Distribution Transformer is a durable, efficient, and high-performance unit designed for medium-voltage power distribution systems. Its advanced design, strong mechanical structure, and low-loss operation make it suitable for utility grids, industrial facilities, and infrastructure projects.
With long service life, stable performance, and compliance with international standards, it provides a reliable and cost-effective option for demanding power distribution applications.
FAQ
Q
What makes this transformer suitable for high-load environments?
Its reinforced structure and high thermal capacity allow it to operate continuously under heavy electrical loads.
Q
How does it perform in terms of noise levels?
It features a low-noise design that minimizes vibration and ensures quieter operation compared to conventional transformers.
Q
What cooling methods are supported?
It supports both natural oil cooling (ONAN) and forced air cooling (ONAF) depending on system requirements.
Q
Can it be customized for specific voltage requirements?
Yes, voltage levels and tap ranges can be customized based on project specifications.
Q
What ensures long-term reliability?
High-quality materials, optimized insulation systems, and advanced manufacturing processes contribute to long-term durability.