High-Reliability 35kV Dry-Type Power Transformer from China Suppliers - Cast Resin for Medium Voltage Power Distribution Factory
Product Parameter
| Parameter | Specification |
| Rated Voltage | 35kV |
| Rated Capacity | 1000kVA – 25000kVA |
| Secondary Voltage | 6kV / 10kV / 11kV |
| Frequency | 50Hz |
| Cooling Method | AN / AF (Air Natural / Air Forced) |
| Insulation Class | F / H Class |
| Winding Material | Copper / Aluminum |
| Impedance Voltage | 6% – 10% |
| Temperature Rise Limit | ≤100K |
| Partial Discharge | ≤10 pC |
| Dielectric Strength | High voltage withstand capability |
| Standards | IEC 60076 / GB1094 / GB/T6451 |
Product Applications
Medium-Voltage Substations and Utility Distribution Networks
The 35kV dry-type power transformer is widely used in utility substations for stepping down voltage from 35kV to 6–11kV distribution levels. It supports stable power transmission for urban and rural grids. With capacity up to 25MVA, it ensures efficient energy delivery and reduces transmission losses by approximately 8%–12%, improving overall grid reliability and operational safety.
Heavy Industrial Manufacturing and Continuous Load Systems
This transformer is ideal for heavy industries such as metallurgy, cement production, mining operations, and petrochemical plants. It is designed to handle continuous high-load conditions and can support overloads up to 120% capacity for short durations. Its strong thermal stability ensures consistent performance in harsh environments with high electrical demand and frequent load fluctuations.
Infrastructure Projects and Renewable Energy Systems
The transformer is widely applied in infrastructure projects such as airports, railway systems, ports, and renewable energy plants including wind and solar farms. It provides stable voltage conversion under variable load conditions. Designed for operation in environments ranging from -40°C to +45°C, it ensures reliable performance in outdoor and remote installations with demanding power requirements.
Product Advantages
Stable Industrial Performance
Supports reliable and continuous electrical operation in industrial environments.
Durable Finished Construction
Compact transformer structure provides reliable long-term operating stability.
Reliable Factory Production
Standardized manufacturing procedures ensure stable product quality.
Operational Safety Design
Durable insulation and finished structure support safe operation.
Efficient Daily Usage
Stable finished transformer design supports smooth and dependable daily operation.
Broad Specification Coverage
Available in multiple product specifications for different industrial applications.
Key Benefits
The 35kV Dry-Type Power Transformer is a safe, efficient, and durable solution for modern medium-voltage distribution systems. Its cast resin insulation, strong overload capacity, and low-loss performance make it ideal for substations, industrial facilities, and infrastructure applications.
With long service life, high safety standards, and maintenance-free operation, it provides a dependable choice for demanding power distribution environments.
FAQ
Q1. What makes a 35kV dry-type transformer safer than oil-immersed types?
It uses cast resin insulation instead of oil, eliminating fire and leakage risks.
Q2. Can it operate under continuous heavy load conditions?
Yes, it is designed for continuous operation and can handle short-term overloads up to 120%.
Q3. Is it suitable for indoor installation only?
Yes, it is mainly designed for indoor use such as substations and industrial buildings.
Q4. How does it handle temperature rise during operation?
It is engineered with controlled thermal limits, typically keeping temperature rise within 100K.
Q5. What industries commonly use this transformer?
It is widely used in utilities, heavy industry, infrastructure, and renewable energy projects.