Hunan Hentg Power Electric Technology Co., Ltd.
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Product Specification
| High Light | 11kV dry type transformer for hotels ，500-1250kVA distribution transformer Africa ，quiet operation dry type transformer | ||
The 500–1250 kVA dry type distribution transformer 11kV/0.433kV is designed for quiet operation, high safety, and stable power distribution in modern commercial infrastructure.
It is widely applied in:
With an oil-free dry type design, it ensures safe indoor installation, eco-friendly operation, and strong noise control performance, making it ideal for environments where comfort and continuous power supply are critical.
Ultra Low Noise Operation
Optimized core and coil design reduces vibration and ensures quiet performance in indoor environments.
High Safety Dry Type Design
Oil-free insulation system eliminates fire and leakage risks for public infrastructure applications.
Stable Power Supply Performance
Ensures continuous operation for critical building systems under variable load conditions.
Compact Structure for Indoor Installation
Suitable for basement power rooms and space-limited electrical substations.
Reliable Performance in African Grid Conditions
Designed to handle voltage fluctuation and unstable grid environments.
| Item | Specification |
|---|---|
| Rated Capacity | 500–1250 kVA |
| Primary Voltage | 11 kV |
| Secondary Voltage | 0.433 kV |
| Phase | 3 Phase |
| Frequency | 50/60 Hz |
| Cooling Method | AN / AF |
| Insulation Class | Class F / H |
| Vector Group | Dyn11 |
| Impedance Voltage | 4% – 6% |
| Temperature Rise | ≤ 100K |
| Noise Level | Low Noise Design (≤ 55–60 dB) |
| Protection Level | IP20 / IP23 |
| Installation Type | Indoor |
| Core Material | Grain Oriented Silicon Steel |
Hotels, airports, and transport terminals require stable and quiet power systems to ensure uninterrupted operation of:
In many African cities, increasing demand and unstable grid conditions can affect power reliability and operational comfort.
Our solution provides:
This makes it an ideal transformer solution for EPC contractors and commercial infrastructure developers.
Is this transformer suitable for airports and hotels?
Yes, it is specifically designed for noise-sensitive commercial infrastructure such as airports, hotels, and terminals.
How quiet is the operation?
It is engineered for low noise performance, typically around 55–60 dB depending on installation conditions.
Can it be installed indoors?
Yes, it is designed for indoor substations and basement electrical rooms.
Can it handle unstable power supply in Africa?
Yes, it is suitable for weak grid and voltage fluctuation conditions common in African cities.
We are HENTG POWER, a professional manufacturer specializing in power transformers and distribution transformer solutions for global infrastructure and commercial projects.
With over 20 years of engineering and manufacturing experience, we provide reliable transformer systems for:
Our product range includes:
Dry type transformers | Oil immersed transformers | Compact substations | Customized power solutions
Contact us today to get reliable low noise transformer solutions for your hotel, airport, or infrastructure project in Africa.
Company Details
Business Type:
Manufacturer
Year Established:
2011
Total Annual:
300-500MVA
Employee Number:
150~200
Ecer Certification：
Verified Supplier
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