2026-03-19
When it comes to stable and efficient power distribution, the 1250kva Oil Immersed Transformer has become a preferred choice across industrial, commercial, and infrastructure applications. Known for its durability, excellent cooling performance, and cost-effectiveness, this type of transformer plays a crucial role in ensuring uninterrupted electricity supply. Whether you are upgrading your power system or planning a new project, understanding its functions, advantages, and applications is essential for making an informed decision.
A 1250kva Oil Immersed Transformer is a medium-capacity electrical transformer that uses insulating oil for cooling and insulation. It is designed to step up or step down voltage efficiently while maintaining system stability.
High thermal efficiency due to oil cooling
Strong overload capacity
Long service life with minimal maintenance
Reliable insulation performance
Suitable for harsh environments
The 1250kva Oil Immersed Transformer performs several essential roles in power systems:
Voltage Regulation – Ensures stable voltage levels for equipment
Energy Transmission – Transfers power efficiently over distances
System Protection – Reduces risks of overload and short circuits
Power Distribution – Supplies electricity to industrial and commercial loads
This transformer is widely used in:
Manufacturing plants
Commercial buildings
Renewable energy systems
Mining operations
Urban power grids
Enhances energy efficiency
Reduces power loss
Improves operational safety
Supports continuous operation
| Parameter | Specification |
|---|---|
| Rated Capacity | 1250 kVA |
| Cooling Method | Oil-immersed (ONAN/ONAF) |
| Voltage Level | Customizable (e.g., 10kV/0.4kV) |
| Frequency | 50Hz / 60Hz |
| Insulation Class | High-grade mineral oil |
| Efficiency | ≥ 98% |
The 1250kva Oil Immersed Transformer is essential because it ensures:
Stable power supply for critical operations
Energy savings through efficient transmission
Operational reliability in demanding environments
Scalability for growing energy demands
Compared to dry-type transformers, oil immersed models offer better heat dissipation and are more suitable for high-load conditions.
| Feature | Oil Immersed Transformer | Dry Type Transformer |
|---|---|---|
| Cooling Efficiency | Excellent | Moderate |
| Maintenance | Low | Low |
| Fire Risk | Moderate | Low |
| Cost | More economical | Higher |
| Load Capacity | Higher | Lower |
At Shanghai Industrial Transformer Co., Ltd., we specialize in manufacturing high-performance 1250kva Oil Immersed Transformer solutions tailored to your specific needs.
Advanced manufacturing technology
Strict quality control systems
Custom design capabilities
Competitive pricing
Professional technical support
We are committed to delivering reliable and energy-efficient transformers that meet international standards.
Typically, it can last 20–30 years with proper maintenance.
Yes, it is designed to withstand harsh environmental conditions.
Routine inspection is recommended annually, with oil testing every 1–2 years.
Absolutely. Voltage, frequency, and other parameters can be tailored to your requirements.
The 1250kva Oil Immersed Transformer is a reliable, efficient, and cost-effective solution for modern power distribution systems. Its superior cooling performance, durability, and adaptability make it an ideal choice for a wide range of industrial applications. Choosing the right manufacturer is equally important to ensure long-term performance and safety.
If you are looking for high-quality transformer solutions, Shanghai Industrial Transformer Co., Ltd. is your trusted partner. Contact us today to get expert advice and customized products that perfectly match your power needs.