30kVA Oil Immersed Transformer
Jan 29, 2026
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30kVA Oil Immersed Transformer is a compact yet highly reliable solution for low-capacity power distribution in industrial and commercial systems. Designed for stable voltage regulation and long-term operation, the 30kVA oil immersed transformer is widely used as an auxiliary power source in workshops, infrastructure projects, and local distribution networks.
Within the first stage of power system design, selecting the right 30kVA Oil Immersed Transformer helps ensure electrical safety, thermal stability, and cost-effective operation. Its oil-filled structure provides excellent insulation and cooling performance even under continuous load conditions.
GNEE is a manufacturer, established in 2008, specializing in oil immersed transformers and industrial power equipment. With strong engineering capability and strict quality control, we supply 30kVA oil immersed transformers that comply with IEC, GB, and other international standards.
What Is a 30kVA Oil Immersed Transformer
A 30kVA oil immersed transformer is a distribution transformer that uses insulating oil for both cooling and electrical insulation. Compared with dry-type units, oil immersed transformers offer better heat dissipation and overload tolerance, making them suitable for outdoor or semi-outdoor installations.
Key structural features include:
- Sealed or conservator-type oil tank
- High-quality silicon steel core
- Copper or aluminum windings
- ONAN (Oil Natural Air Natural) cooling system
These characteristics ensure stable operation and long service life.
30kVA oil immersed transformer – factory-finished product
Advantages of 30kVA Oil Immersed Transformer in Power Distribution
The 30kVA oil immersed transformer is favored in small-capacity applications due to its balanced performance and cost efficiency.
Its main advantages include:
- Excellent insulation strength provided by transformer oil
- Lower temperature rise under continuous operation
- Compact structure with high reliability
- Reduced maintenance requirements
These advantages make it an ideal choice for auxiliary power supply and decentralized distribution systems.
Typical Applications of 30kVA Oil Immersed Transformer
A 30kVA oil immersed transformer is commonly used in scenarios where stable and localized power supply is required, such as:
- Industrial control panels and automation equipment
- Small factories and workshops
- Pump stations and monitoring systems
- Rural or temporary power distribution networks
Its moderate capacity makes it suitable for long-term operation without excessive energy loss.
Technical Parameters of 30kVA Oil Immersed Transformer
| Item | Specification |
|---|---|
| Rated Capacity | 30 kVA |
| Transformer Type | Oil Immersed Distribution Transformer |
| Rated Voltage (HV) | 6 kV / 10 kV / 11 kV (customizable) |
| Rated Voltage (LV) | 0.4 kV / 0.23 kV |
| Frequency | 50 / 60 Hz |
| Cooling Method | ONAN |
| Phase | Single-phase / Three-phase |
| Insulation Level | IEC / GB compliant |
| Temperature Rise | ≤ 65K |
| Applicable Standards | IEC 60076 / GB / ANSI (optional) |
Why Choose GNEE as Your 30kVA Oil Immersed Transformer Manufacturer
As an experienced manufacturer, GNEE provides reliable 30kVA oil immersed transformers tailored to different voltage levels, installation environments, and project requirements. From material selection to final testing, every unit is manufactured with strict quality control to ensure safety and durability.
We support OEM/ODM services and offer professional technical guidance to help customers select the right transformer solution.
Conclusion
The 30kVA Oil Immersed Transformer is a dependable and cost-effective solution for low-capacity power distribution in industrial and commercial applications. With stable performance, excellent insulation, and long service life, it remains an essential component of modern power systems.
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