How does the transformer coil affect the winding machine of the winding machine manufacturer
As my country's economy develops rapidly and steadily, the demand for electricity is also increasing. As the basic equipment for power transmission and transformation in the power industry, transformers are widely used in power plants, converter stations, substations and user terminals. They occupy a very important position in the power industry. Their demand is also increasing day by day, and the market prospect is very broad. This puts forward higher requirements for the production efficiency of transformers in our country. At the same time, with the global energy crisis, it is imperative to produce more energy-efficient and efficient transformers. It is in this context that my country's transformer manufacturing standards are repeatedly raised, and the requirements for performance indicators are becoming more and more stringent.
There are two development directions for transformers in the future: one is ultra-high voltage, large capacity, and the other is high efficiency, intelligence, small size and low noise. In addition to the influence of structural design, the quality and economic and technical performance of transformers depend to a large extent on the technical level of manufacturing processes and manufacturing equipment. In order to meet the increasingly stringent requirements for transformer quality and performance indicators, automatic winding machine manufacturers must improve the technical level of transformer foil winding machines, so that they can produce transformers that can meet the needs of national power development.
The current vertical winding machine is further developed to large-scale. The original vertical winding machine of the automatic winding machine manufacturer has a load of only 20t, and it has now been increased to 40t. The diameter of the coil is larger to 3500mm, and the larger height reaches 4000mm. The airbag plate-type tension device is used, and the tension is displayed digitally, and the tension control is more accurate, stable and reliable. In order to improve the dimensional accuracy of the coils wound, control the radial runout of the vertical winding machine, and increase the winding die shaft head fixing device; in order to control the axial runout, a high-precision double-row roller type large bearing is used. Therefore, through the use of special equipment for coil winding, winding production reaches a new level. This makes it possible for the transformer to further reduce losses, reduce partial discharge, reduce weight, and reduce costs.
From the transformer winding structure design, not all the coils can be used in the production of vertical winding machine. Such as layer structure, multi-spiral structure coil. If this coil is wound using a common horizontal winding machine, axial no pressure winding system, line segment gap is large, like a pressure spring. The diameter of the coil becomes larger after pressing, and the gap between the coil and the paper tube will cause the axial instability of the coil, the coil may be damaged in the case of Axial Electric Force. Therefore, with axial, radial compression type horizontal winding machine, in the production of large transformer coil, has been widely used. Along with the transformer performance request is more and more high, the General Small and medium-sized transformer’s production, also gradually starts to use the compression type horizontal winding machine. In order to control the pressing force more accurately, the torque motor or cylinder used in the pressing mechanism has been replaced by servo motor. In order to control the size tolerance of the winding coil, increase the grating ruler, on-line detection coil size. According to the length of the winding coil, the tension of each spool can be controlled independently, and the follow-up of the Spool can avoid the new stress caused by the distortion of the wire and reduce the eddy current loss of the winding.
