250 KVA Oil-immersed Power Transformer: Design Features and Application Scope
Jan 28, 2026
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In medium-capacity power distribution systems, 250 KVA Oil-immersed Power Transformer solutions are widely adopted due to their high efficiency, excellent heat dissipation, and long service life.
As a professional transformer manufacturer and industrial equipment supplier, GNEE provides customized 250 KVA Oil-immersed Power Transformer products designed for industrial, commercial, and utility applications worldwide. With strict quality control, international standards compliance, and flexible OEM/ODM capability, GNEE ensures stable and safe power transmission for your projects.
Who We Are – Manufacturer of 250 KVA Oil-immersed Power Transformer
GNEE is a professional manufacturer and exporter of power transformers and industrial equipment, serving global markets since 2008. We specialize in the production of oil-immersed and dry-type transformers, offering custom-designed 250 KVA Oil-immersed Power Transformer solutions for diverse working conditions.
Why choose GNEE:
- Factory-direct supply with competitive pricing
- IEC / ANSI / GB standard compliance
- Strong engineering & customization capability
- Stable quality and fast delivery
GNEE oil-immersed transformer manufacturing line
250 KVA Oil-immersed Power Transformer Design Features
Core Design of 250 KVA Oil-immersed Power Transformer
The 250 KVA Oil-immersed Power Transformer uses high-grade silicon steel cores with low hysteresis loss, ensuring excellent magnetic performance and energy efficiency. Advanced lamination technology reduces noise and no-load losses.
Oil-immersed Cooling Structure of 250 KVA Oil-immersed Power Transformer
Transformer oil serves both insulation and cooling purposes. Natural oil circulation (ONAN) effectively dissipates heat generated during operation, making the 250 KVA Oil-immersed Power Transformer ideal for continuous load environments.
Insulation & Protection Design of 250 KVA Oil-immersed Power Transformer
High-strength cellulose insulation
Vacuum oil filling for moisture control
Conservator or sealed tank options
Pressure relief and oil level indicators
Technical Advantages of 250 KVA Oil-immersed Power Transformer
High Efficiency of 250 KVA Oil-immersed Power Transformer
Compared with dry-type transformers, oil-immersed units provide lower operating temperature and reduced copper losses, ensuring higher efficiency and longer service life.
Long Service Life of 250 KVA Oil-immersed Power Transformer
The oil insulation system protects windings from oxidation and thermal aging, extending operational life beyond 20–30 years with proper maintenance.
Strong Environmental Adaptability of 250 KVA Oil-immersed Power Transformer
The 250 KVA Oil-immersed Power Transformer performs reliably in:
- High-temperature areas
- Outdoor substations
- Dusty or industrial environments
Application Scope of 250 KVA Oil-immersed Power Transformer
Industrial Applications of 250 KVA Oil-immersed Power Transformer
Widely used in:
- Manufacturing plants
- Steel and metal processing
- Chemical and petrochemical facilities
Commercial & Infrastructure Use of 250 KVA Oil-immersed Power Transformer
Suitable for:
- Commercial complexes
- Hospitals and schools
- Data centers and logistics parks
Utility & Rural Power Distribution of 250 KVA Oil-immersed Power Transformer
Frequently applied in:
- Power distribution networks
- Rural electrification projects
- Renewable energy substations
Technical Parameters of 250 KVA Oil-immersed Power Transformer
| Parameter | Specification |
|---|---|
| Rated Capacity | 250 kVA |
| Transformer Type | Oil-immersed |
| Cooling Method | ONAN |
| Rated Voltage (HV) | 6kV / 10kV / 11kV / 33kV (customizable) |
| Rated Voltage (LV) | 400V / 415V / 690V |
| Frequency | 50Hz / 60Hz |
| Insulation Class | A |
| Vector Group | Dyn11 / Yyn0 (optional) |
| Impedance | 4% – 6% |
| Standards | IEC 60076 / ANSI / GB |
| Installation | Outdoor / Indoor |
| Protection Level | IP54 (customizable) |
Why Choose GNEE 250 KVA Oil-immersed Power Transformer
Choosing GNEE means choosing a reliable manufacturer with strong technical support and export experience. Each 250 KVA Oil-immersed Power Transformer is factory-tested for electrical performance, insulation strength, and oil quality before delivery.
We offer:
- Customized voltage & impedance design
- Competitive factory pricing
- Professional export packing
- Fast technical response
Conclusion: Reliable 250 KVA Oil-immersed Power Transformer from GNEE
The 250 KVA Oil-immersed Power Transformer remains an ideal choice for stable, efficient, and long-term power distribution across industrial, commercial, and utility sectors. As a trusted manufacturer, GNEE is committed to delivering high-quality transformer solutions tailored to your project needs.
👉 Contact GNEE now to get a technical proposal and competitive quotation for your 250 KVA Oil-immersed Power Transformer.