In the company Evernew Transformer you can order dry-type transformers and dry-type power transformers of various capacities at wholesale prices directly from the factory with delivery within 90 days. We offer models suitable for various industrial and distribution networks, providing reliable and stable power supply.

We provide transformers with capacities from 50 kVA to 10,000 kVA and voltages of 10 kV, 20 kV, 35 kV (high) and 0.4 kV, 6 kV, 10 kV, 20 kV (low). Customized dry-type transformers and dry-type power transformers are also available to meet various power and voltage requirements.

Evernew Transformer - a leading Chinese manufacturer with over 30 years of experience, certified according to GOST, CE and UL international standards. We guarantee the high quality and reliability of our products, which meet the most stringent requirements of the global market. Our transformers are sold to Russia, Kazakhstan, Belarus, Uzbekistan, Tajikistan and other countries.

We offer standard models as well as customized solutions to meet your exact requirements. We deliver within 90 days, ensuring fast and timely fulfillment of orders.

For more information or to place an order, please contact us.

Contact us

What is a dry-type transformer

A dry-type transformer is an electrical converter that uses air cooling instead of liquid cooling agents. It does not require oil leakage control and regular oil changes, which significantly reduces operating costs. This type of transformer complies with GOST R 54827-2011 standard, providing a high level of safety and ease of operation. Due to their environmental friendliness, dry-type transformers are widely used in areas with high safety requirements, such as public buildings, oil and gas enterprises, metallurgy, nuclear power plants, as well as in the paper and pulp industry. They can be manufactured using vacuum or non-vacuum technology to provide highly efficient and stable power conversion in a variety of industrial environments.

Types of dry-type transformers:

  • TC - Free-cooled transformers used in moderate environments.
  • TSZ - Forced air-cooled transformers suitable for high loads.
  • TSZL - Models with extra protection against external influences, ideal for demanding environments.
  • TSL - Low noise transformers used in residential and office buildings.
  • TSN - Transformers with increased protection for severe operating conditions such as high humidity or aggressive media.

Advantages of dry-type transformers compared to oil transformers

Dry-type transformers have a number of significant advantages over oil transformers:

  • The absence of flammable transformer oil reduces the risk of fire;
  • There is no environmental pollution due to oil leaks;
  • Dry-type transformers do not require the installation of oil systems and regular oil condition monitoring, which reduces operating costs;
  • Since transformer oil does not emit odors typical of petroleum products, dry-type transformers can be installed in rooms where people work without restrictions. Maintenance of such devices is reduced to regular external inspections.
Schematic diagram of the internal structure of a dry-type power transformer, showing the main components and structural elements.

Operating principle of a dry-type transformer

The principle of operation of a dry-type transformer is based on electromagnetic induction. When alternating current passes through the primary winding of the transformer, an alternating magnetic field is created, which is transmitted through the core to the secondary winding, inducing voltage. Depending on the ratio of the number of turns in the windings, the transformer can raise or lower the voltage. A key advantage of the dry-type transformer is its efficient air cooling system, which allows the device to avoid overheating during operation and extends its service life.

Starts and certification

Dry-type transformers Evernew Transformer comply with international quality standards and are certified for safety and performance. These devices comply with the following standards GOST, CE и ULwhich confirms their high quality and compliance with international requirements.

Dry-type transformers Evernew Transformer certified according to the standards GOST 15150, categories U1 и UHL1This guarantees their performance in a variety of climatic conditions, including high and low temperatures, as well as humid and dusty environments.

Basic parameters of dry-type transformers:

  • Power: 50 kVA to 10000 kVA
  • Voltage:
    • High voltage: 6 kV, 10 kV, 20 kV, 35 kV
    • Low voltage: 0.4 kV, 0.69 kV, 3.15 kV, 6.3 kV, 10.5 kV
  • Protection Class: IP00 (basic) or IP21 (with protective housing)
  • Temperature range: -25°C to +40°C (with the ability to operate down to -50°C under certain conditions)
  • Maximum installation height: up to 1000 meters above sea level
  • Lifespan: up to 15 years if the operating conditions are met, making these devices cost-effective for long-term use

Dry-type transformers Evernew Transformer are ideal for a wide range of applications, from industrial facilities to facilities with high fire safety requirements. They provide reliable performance in a wide range of climatic and operating conditions.

For more information about our dry-type transformers and their applications, please contact our experts via the website.

Main components of dry-type transformers and their materials

  1. Housing (Material: steel, aluminum)
    Used to support the entire transformer structure, providing strength and stability. Steel and aluminum alloys are lightweight and strong, ensuring a robust and sturdy structure.

  2. Winding terminals (Material: copper, aluminum)
    Designed for current input and output, ensuring stable connection of the transformer to the grid. Copper and aluminum have good conductivity, which ensures efficient power transmission.

  3. Transformer core (Material: silicon steel)
    Made of high quality silicon steel, it is the main element for electromagnetic energy transmission. The material has low losses and high magnetic permeability.

  4. Cooling system (Material: aluminum alloys, plastic)
    Cooling by natural airflow or forced ventilation ensures stable operation of the transformer under high loads. Aluminum alloys and plastic contribute to the cooling efficiency.

  5. Control and measuring devices (Material: metal, plastic)
    They are used to continuously monitor the transformer status and ensure its safe operation. The housing of the devices is usually made of heat-resistant plastic and metal, which protects the internal electronic components.

  6. Insulation materials (Material: epoxy resin, paper, ceramic)
    Designed to electrically insulate and provide effective insulation. Epoxy resin, insulating paper and ceramics provide high stability and long life.

  7. Shell (Material: steel, aluminum)
    The shell protects the transformer from external shock and contamination. Steel and aluminum have good corrosion resistance and strength, making them ideal for use in a variety of environments.

  8. Overload protectors (Material: metal, plastic)
    Prevent damage to the transformer in case of overload. Protective devices are usually made of metal and heat-resistant plastic to effectively protect the transformer under abnormal loads.

  9. Fans (Material: aluminum, steel)
    Promote air circulation and reduce transformer temperature, maintaining stable operation. Aluminum and steel fans are resistant to high temperatures and effectively cool the equipment.

  10. Cushioning devices (Material: rubber, steel)
    Reduce vibrations during transportation and operation by protecting the transformer from mechanical shocks. Rubber provides cushioning and steel provides the necessary strength and support.

Dry-type transformer core winding made of high quality aluminum wire and insulating materials.

Design features of dry-type transformers manufactured using vacuum technology

Vacuum-assisted dry-type transformers are filled with silica-filled epoxy resin during vacuum processing, which effectively removes impurities from the insulating material and eliminates microscopic air bubbles. This greatly increases the dielectric strength of the insulator, improving the stability and durability of the transformer.

Key design elements:

Input high voltage side
The input high-voltage side is equipped with a jumper to match the operating voltage of the power supply, which optimizes the voltage conversion process and ensures transformer stability on the high-voltage side.

Input low voltage side
The low-voltage side is usually located above the input high-voltage side, but in special versions it can be mounted below, allowing the device to be adapted to different operating and connection conditions.

Three-wire magnetic conductor
The magnetic conductor is made of special magnetic steel with oriented crystal distribution, which reduces energy losses and improves transformer performance, providing high efficiency at high loads.

Low-voltage and high-voltage windings
Low-voltage and high-voltage windings are made of aluminum tapes with excellent conductive properties, high temperature resistance and low resistance, which ensures stable operation of the transformer under long-term operating loads.

Cushioning pads
Shock absorbing pads effectively reduce noise levels during transformer operation, ensuring that the transformer operates with minimal noise impact on the environment.

Movable support frame
The movable support frame with castors allows the transformer to be easily moved horizontally or vertically for easy installation, maintenance or relocation of the unit.

Insulating materials
The insulation materials utilize a mixture of epoxy resin and quartz fillers to provide high compressive strength, heat resistance and long term stable operation without the need for additional maintenance, which significantly reduces the cost of operation.

This design makes dry-type transformers manufactured using vacuum technology highly efficient and reliable, making them ideal for applications in industry and in places where high demands are placed on the stability and safety of the power supply.

Care and operation of dry-type transformers

Dry-type transformers require a specific maintenance approach to ensure their long-term and safe operation. The maintenance plan and frequency of maintenance should be in accordance with the manufacturer's recommendations, national standards and industry regulations. In general, maintenance of dry-type transformers includes the following activities:

  • Cleaning the transformer surface of dust to improve heat dissipation.
  • Check the effectiveness of natural or forced ventilation.
  • Checking the tightening of bolted connections.
  • Check the condition of the paintwork for signs of overheating, abnormal color changes, or signs of electrical damage.
  • Inspection of the condition of thermal insulation devices and protective elements.

Electrical equipment of dry-type transformers is inspected according to the established schedule. Maintenance activities and inspections are recorded in the operators' working documents and must be carried out in accordance with the requirements of the operating regulations. Visual inspections and thermal imaging measurements shall be carried out with the transformer running; in all other cases the power supply must be disconnected.

Sale of dry-type transformers from leading manufacturers in Russia, with high quality and reliability.
Dry type transformer standard dimensions

The dry-type transformer with standardized dimensions offers efficient solutions for industrial and distribution networks. These transformers are characterized by high reliability and compactness, allowing them to be used in confined spaces under various climatic conditions. The dimensions can be varied according to capacity and technical requirements, with the possibility of customization to meet specific customer needs.

Rated power kVAOverall dimensions (mm, not more)Weight
L (length)B (width)H 1 (full height)
25725555870365
4082085920425
63900650985655
100900650985655
16098065011751010
250103570012151270
400112079512801550
6302100115016552410
10002000120019002870
16002100115016552410
12502010130023004100
25002850145527354100

About the company

Evernew Transformer - a leading Chinese transformer manufacturer offering complete solutions for the power industry. With more than 30 years of experience, the company covers more than 500 hectares of land and produces and supplies tens of thousands of transformers annually, including dry-type transformer series products. With its high level of production capacity and technical advantages, Evernew Transformer provides high-quality equipment for various industries, ensuring reliable power distribution and stable operation.

One of the main activities of the company is the development and production of dry-type transformers. Modern production processes and advanced technologies, as well as an experienced engineering department, allow us to create products that meet international standards and can be customized to meet individual customer requirements. We offer solutions for a wide variety of industries, including industrial plants, commercial facilities, power companies and others.

Production base Evernew Transformer includes specialized workshops for the production of dry-type transformers equipped with state-of-the-art processing and assembly equipment. This allows us to ensure high quality and reliability of each transformer.

Manufacturer's warranty

Evernew Transformer provides a full range of after-sales services for all its transformers. During the warranty period, we repair defects caused by manufacturing faults and replace damaged components and assemblies free of charge. In order to receive warranty service, customers are obliged to comply with the transportation, storage, installation and operating conditions specified in the technical documentation. In case of non-compliance with these requirements, the warranty is not provided.

Contacts

If you would like more information about dry-type transformers or would like to order a customized solution, please contact our experts. We will provide professional advice and technical support to help you select the optimal equipment for your needs.