Do you know what is the common winding process of transformer winding?

Transformer winding is the core part of transformer, and its winding process directly affects the performance and quality of transformer. Several commonly used transformer winding winding processes and their characteristics will be described below.

Content

● Layer winding process

Layer winding is to wrap the wire layer by layer on the iron core, and each layer is separated by insulating material. This process has the advantages of simple structure, easy to manufacture, and small interlayer capacitance, which is conducive to reduce electrical faults. However, layered windings may lead to a large interlayer voltage gradient in high voltage and large capacity transformers, requiring special attention to insulation design.

● Cake winding process

Pie winding is the wire winding into multiple disk-shaped coil (cake), and then stacked together to form a winding. This process is suitable for high voltage and large capacity transformer, with good heat dissipation performance and mechanical strength. At the same time, the cake room can be cooled through the oil channel to improve the operating efficiency of the transformer. But the manufacturing process of cake winding is relatively complex and the cost is high.

● Spiral winding manufacturing process

The spiral winding is to spiral the wire on the iron core, forming a continuous winding. This process is suitable for small and medium-sized transformers, and has the advantages of tight winding and space saving. Helical windings also have good electrical and thermal properties, but attention should be paid to maintain the uniformity and tightness of the winding during the manufacturing process.

In Summary

To sum up, layer winding, cake winding and spiral winding are the three winding processes commonly used in transformer winding. Each process has its own characteristics and scope of application, which should be selected according to the specific requirements and manufacturing conditions of the transformer.

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