Dry-type transformers: why to choose, where to buy and how not to make a mistake

In today's energy and construction industry, there is a growing demand for reliable, safe and environmentally friendly solutions. One of such solutions is dry-type transformers - equipment that successfully replaces oil analogs in a wide range of applications. Today we will tell you in detail why you should choose a dry-type transformer, how to select it correctly, where to buy it in Russia and what to pay attention to when choosing one.

What is a dry-type transformer?

Dry transformer - is a power transformer in which the windings are not cooled with oil, but are filled with epoxy resin or insulated with air. Due to the absence of liquid components, these transformers are safe for indoor installation, require minimal maintenance and are widely used in facilities with high fire and environmental safety requirements.

Technical specifications

Energy Transformer offers a wide range of dry-type transformers:

• Power： from 50 kVA to 10 000 kVA

• Voltage class：6 kV, 10 kV, 20 kV, 35 kV (up to 110 kV on request)

• Frequency：50 Hz

• Connection type： star-star-star (Y-Y), star-triangle (Y/Δ)

• Insulation class：F or H

• Cooling type：AN (natural), AF (forced)

• Degree of protection：IP00, IP23, IP44 (on request)

• Climatic version：U, T, XL

Advantages of dry-type transformers

1. Fire safety
   Oil-free, no toxic emissions when heated - ideal for installation in schools, hospitals, offices and shopping centers.

2. Environmental friendliness
   Absolutely environmentally friendly - no oil leakage, minimal noise level.

3. Minimal maintenance
   No need for oil changes, no tanks, gaskets or filters.

4. Compactness and aesthetics
   Suitable for indoor use, with a modern appearance and small size.

5. Resistant to overloading and humidity
   Especially models with resin-filled windings.

6. long service life
   Up to 30 years of operation without major repairs.

Where are dry-type transformers used?

• 🏢 Residential and office buildings

• 🏥 Medical and educational institutions

• 🏭 Industrial enterprises

• ⚡ Power substations

• ☀️ Solar and wind power plants

• 🚇 Subways, railway stations, airports

• 🛳️ Shipbuilding, ports, drilling rigs

• 🔋 Data centers and IT centers

How to choose a dry-type transformer?

1. Determine the required power
   For buildings - from 100 to 1000 kVA, for industrial facilities - 1600, 2500, 6300, up to 10 000 kVA.

2. Select the voltage
   For example:

   • Input: 10 kV

   • Output: 0.4 kV

   • Or: 35 kV / 6 kV

3. Specify the operating conditions
   Humidity, dust, temperature fluctuations - this affects the choice of enclosure (IP23, IP44, etc.)

4. Check the certification

   • GOST R, CE, EACCompliance with TR CU

   • Availability of test reports

5. Choose a trusted manufacturer
   The plant should have experience, certificates, deliveries in the Russian Federation, ability to customize parameters for the project.

Comparison: dry-type and oil-type transformer

Where to buy a dry-type transformer in Russia?

If you are looking for a reliable supplier, take a look at Energy Transformer - China's leading transformer manufacturer. We offer:

• 🔋 Сухие трансформаторы от 50 to 10,000 kVA

• 📦 Прямые поставки с завода в Россию и СНГ

• 🏭 Производство по стандартам CE, GOST, ISO

• ⚙️ Настройка под ваш проект：напряжение, защита, размеры, вводы

• 🚚 Быстрая доставка: от 30 to 45 days

• 💼 Поставка в любые регионы: Москва, Казань, Екатеринбург, Новосибирск, Владивосток, Минск, Ташкент и др.

Conclusion

Dry transformer - is the optimal solution for sites with high demands on safety, reliability and compactness. Choose transformers with warranty, from trusted manufacturers and match the power and parameters to the specific application.

Energy Transformer is ready to provide you with modern and certified equipment for any area - from a residential house to a substation with a capacity of 10 MVA.