How transformer coil winding machine affects the coil winding machine manufacturers

With the rapid and steady development of China’s economy, the demand for electricity is also increasing. As the basic equipment of power transmission and transformation in the electric power industry, transformers are widely used in power plants, converter stations, substations and customer side, occupying a very important position in the electric power industry, with increasing demand and broad market prospect. This has put forward higher requirements for the production efficiency of transformers in China. At the same time, with the global energy crisis, it is imperative to produce more energy-efficient and highly effective transformers. It is in this context that the standards for transformer manufacturing in China have continued to improve and the requirements for performance indicators have become increasingly stringent.
Winding machine

There are two future directions of transformer development: high voltage, high capacity, high effectiveness, intelligence, small and low noise. In addition to the influence of structural design, the quality and economic and technical performance of transformers depend largely on the manufacturing process and the technical level of manufacturing equipment. In order to meet the increasingly stringent requirements of transformer quality and performance indicators, automatic winding machine manufacturers need to improve the technical level of transformer foil winding machines to produce transformers that can meet the needs of power development.

At present, transformer winding machines have been further developed on a large scale. The original transformer winding machine of automatic winding machine manufacturer only had a load capacity of 20t, but now it has been upgraded to 40t, with larger coil diameter and height of 3500mm and 4000mm. using airbag plate tensioning device, digital display of tension, tension control is more accurate, stable and reliable. In order to improve the dimensional accuracy of winding coils and control the radial runout of transformer winding machine, the winding die shaft head fixing device has been added; in order to control the axial runout, high precision double-row roller large bearings have been adopted. As a result, winding production can reach a new level by using special equipment for coil winding. This further reduces transformer losses, reduces local placement, reduces weight and lowers costs.

From the point of view of transformer winding structure design, not all coils used can be produced by vertical winding machines. For example, layer structure, multi-helix structure coils. If this coil is wound by a normal horizontal winding machine, the shaft does not have any pressure winding and the wire segment gap is large, just like a pressure spring. When the coil is compressed, the diameter becomes larger and the gap between the coil and the paper tube will cause the coil to be axially unstable. If there is axial power, the coil may be damaged. Therefore, axial and radial compression horizontal winding machines have been widely used in the production of large transformer coils. With the increasing performance requirements of transformers, the production of small and medium-sized transformers in general has also gradually started to use compression horizontal winding machines.

In order to control the pressure more accurately, the original pressure mechanism using torque motors or cylinders to generate pressure has been replaced by servo motors. In order to control the size tolerance of winding coils, a scale is added and the coil size is checked online. Independent control of the payoff tension of each bobbin on the multi-axis payoff car. Random tracking of the payoff car according to the length of the winding coil to avoid twisting and deforming the wire to generate new stresses and reduce eddy current loss in the winding.

WhatsApp/Wechat: +86 13075286997

E-Mail: sales@vacuz.com [fusion_form form_post_id="431″ margin_top="" margin_right="" margin_bottom="" margin_left="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id=""][/fusion_form]