+99412 452 41 81 info@atef.az
+99412 452 41 81
Power transformers

Силовые трансформаторы

Компания ATEF производит трансформаторы и автотрансформаторы с масляной изоляцией классом напряжения до 525 кВ и 800 МВА.

Наша компания имеет уникальную конструкторскую концепцию, благодаря которой мы можем значительно ускорить производственный процесс и одновременно соответствовать международным параметрам качества.

Трансформаторы производства ATEF прошли испытания и сертифицированы лабораториями KEMA и CESI.

Ассортимент силовых трансформаторов ATEF включает:

·       Трансформаторы понижающие
·       Трансформаторы повышающие
·       Трансформаторы фазового сдвига
·       Дуговые трансформаторы
·       Трансформаторы электропечные
·       Шунтирующие реакторы
·       Трансформаторы тяговые
·       Автотрансформаторы

Manufacturing of magnetic cores

At the plant of Large Transformers special attention is paid to the technology of manufacturing magnetic circuits. Furthermore, there is are automatic lines for longitudinal and transverse cutting of electrical steel with a thickness of 0.18mm, incl. at an oblique angle on the assembly technology "Step-Lap", the company SAGMA, GEORG.

Assembly tables with hydraulic adjustment, as well as special bandage machines ensure the manufacture of magnetic cores with minimal electrical losses and reduced noise.

The main factors taken into account in the production of magnetic cores at the plant are:

·       High reliability
·       Reduced material and labor costs
·       Reduction of losses in the magnetic core
·       Reduction of magnetizing current
·       Low noise

Quality control is required at every stage of production to ensure quality and reliability of details. The dimensions of chopped electrical steel sheets, as well as the presence of edge burrs in electrical steel are strictly controlled and tested to ensure the calculated values of losses in the magnetic circuit.

Coil manufacturing

The vertical and horizontal winding machines in the winding shop allows to manufacture any type of winding up to 30 tons in a short time.  The vertical winding device allows operators to smooth and easy control in the production of large windings.  In the manufacture of power transformer coils, we use high-quality winding wires, including continuously transposed cables (CTC) and insulation materials (cylinders, rails, gaskets, cones, etc.) to obtain the best possible insulation for the entire service life of transformers. 

The factory has well-equipped drying ovens with the simultaneous pressing to extract moisture from insulation materials.  After finishing the winding, each coil undergoes a vacuum drying process. The drying process is fully automated and monitored for maximum drying performance.  During the drying process, the height of the windings is pressed and adjusted automatically in accordance with the design data.

Assembling the active part and drying

After completing the assembly of the windings and the core, the active parts are transferred to the vacuum chamber for the maximum productivity of the drying. 

For maximum removal of moisture from the active parts of the drying, the process occurs in vapors of the solvent. This technology allows to achieve maximum reliability of transformers produced by ATEF.

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