Red cast resin dry-type transformer in the production hall

Dry-Type
Transformers

Cast Resin Dry-Type Transformers

Full performance
under all conditions.

Ambient temperatures as low as -25°C and up to 95% humidity, as well as in high altitudes.

Product Description

25 MVA
Megavoltamperes
52 kV Class
max. Rated Voltage

Our cast resin dry-type transformers enable efficient energy distribution without the use of liquid coolants, making them particularly suitable for indoor and environmentally friendly applications.

These transformers are equipped with advanced insulation technology and are characterized by high reliability and minimal maintenance. They are specially designed for use in high altitudes, high humidity, and harsh environmental conditions. They comply with international guidelines.

As these transformers do not contain flammable liquids and are made from materials that can self-extinguish, high environmental safety is ensured. Furthermore, they do not emit toxic gases and are characterized by low electromagnetic emissions.

Cast resin dry-type transformer

Economical & Safe — Maximum Performance with Minimal Risk

Our transformer offers numerous advantages that both lower operating costs and increase longevity. Thanks to its design without liquid filling, there is no risk of leaks, reducing maintenance requirements to a minimum.

Additionally, local customer service is provided for quick and easy support when needed. With its low transport and installation costs, the transformer is a cost-efficient solution. Cooling fans allow the transformer's rated power to be flexibly increased, while the low partial discharge ensures a long lifespan.

A high degree of insulation reliably protects against short circuits and lightning strikes. Additionally, short-term overloads are easily tolerated, offering extra security during peak load periods.

Slow thermal and dielectric aging significantly extends the lifespan. Maximum performance goes hand-in-hand with low energy consumption, reducing operating costs. Our space-saving design allows for easy integration, while self-extinguishing properties and high resistance to strong shocks and vibrations provide additional safety.

Trust in quality that pays off – economically and safely.

Detail of a dry-type transformer winding
Wind turbines on green hills

Field of Application — Energy Facilities

  • Wind farms
  • Solar power plants
  • Hydroelectric power plants
  • Combined heat & power plants
  • Industrial plants
Modern high-rise office buildings

Field of Application — Service Companies

  • Hotels
  • Schools
  • Hospitals
  • Banks
  • Office buildings
  • Sports facilities
  • Mines
  • Shopping centres
Passenger aircraft taking off

Field of Application — Infrastructure

  • Airports
  • Harbours
  • Military facilities
  • Rail transport
Glowing molten metal in an industrial foundry

Field of Application — Industrial Plants

  • Induction furnaces
  • Pumping stations
  • Boiler systems
  • Ventilation systems
  • Conveyor systems
  • Welding lines
  • Underground transformer systems
Red epoxy resin coils in productionTransformer core during assembly

Dry-Type Transformer

Tests

National and international quality tests are carried out in our accredited laboratory for cast resin dry transformers.

Technician testing a dry-type transformer

Routine Tests

  • Measurement of winding resistance
  • Measurement of voltage transformation factor and phase difference
  • Resistance measurement on the insulator
  • Measurement of short circuit impedance and charge loss
  • Measurement of decoupling losses and voltage
  • Application of voltage tests
  • Induced voltage testing
  • Partial discharge measurement

Type-Specific Tests

  • Testing the temperature rise
  • Lightning strike test
  • Operating noise level measurement

Special Tests

  • Determination of the capacitance between the coils and the earthing via the coils
  • Measuring the zero-sequence impedance of three-phase transformers
  • Short-circuit resistance measurement
  • Harmony test with current switched off
  • Insulation resistance from coil to earth
  • Power factor measurement (tangent-delta measurement)

Contact us for more information!

Request form

Request a quote for your transformer

Tell us the technical parameters you need – rated power, voltages, type and accessories – and our team will prepare a tailored offer.

Go to the enquiry form

Contact

Akar Energy GmbH
Am Logistik Park 3
85416 Langenbach
Germany

+49 8761 722 635 160

info@akar-energy.com