As China's economy develops rapidly and steadily, the demand for electricity is also growing. As the basic equipment for power transmission and transformation in the power industry, transformers are widely used in power plants, converter stations, substations and customer terminals. They occupy a very important position in the power industry, and their demand is increasing day by day. The market prospect is very broad. This puts higher requirements on the production efficiency of China's transformers. At the same time, along with the global energy crisis, it is imperative to produce more energy-efficient transformers. It is against this background that China's transformer manufacturing standards are repeatedly raised, and the requirements for performance indicators are becoming more and more strict. There are two future development directions for transformers: one is ultra-high voltage, large capacity, and the other is high efficiency, intelligence, small size and low noise. In addition to the structural design, the quality and economic and technical performance of the transformer depend to a large extent on the technical level of the manufacturing process and manufacturing equipment. In order to meet the increasingly stringent requirements for transformer quality and performance specifications, we must improve the technical level of transformer winding machines, so that they can produce transformers that can meet the needs of national power development.
The transformer is generally composed of a core, a coil, an outer casing and the necessary insulating material. The coil of the transformer is generally divided into a high voltage coil and a low voltage coil. The high voltage coil is generally wound with a circular insulated wire, and the low voltage coil generally winds the stomach with a flat insulated wire or foil. The coil winding of the transformer is the core process of transformer manufacturing and has a great influence on the performance of the transformer. It not only directly determines the main economic and technical indicators such as the external dimensions, loss and weight of the transformer, but also directly affects the main quality indicators such as mechanical properties, insulation properties and heat resistance of the transformer. The winding of the conventional transformer coil relies on manpower to wind the insulated wire onto the workpiece according to the production process requirements, and the operator counts the resistance. With the traditional winding method, not only the winding efficiency is low, but also the quality of the finished coil is poor. The current transformer coil winding is generally used with an automatic winding machine, which can significantly improve production efficiency and wiring accuracy. In the automatic winding machine, there are vertical winding machines for winding large transformers, and horizontal winding machines and foil winding machines for winding lower voltage grades and smaller capacity transformers.