What are the characteristics of disc-typewinding?

Among the many types of transformerwinding, disc-typewinding have remarkable characteristics and are widely used. Disc-typewinding are mainly used in high-voltage transformers with higher voltages and larger capacities. For example, in large power transformers, their good mechanical and heat dissipation properties can adapt to the high electric field intensity, large current, and complex heat exchange requirements brought by high voltages and large capacities.

A thorough understanding of the characteristics of disc-typewinding helps us better understand their applicability in different scenarios. The following will elaborate on them in detail.

Content

●Structural characteristics

Disc-typewinding consist of multiple disc-shaped coils. Each disc-shaped coil is formed by winding the wire in a plane for multiple turns to create a shape similar to a disc. Then these disc-shaped coils are stacked axially. The adjacent disc-shaped coils are separated by insulating materials such as spacers, forming oil channels or air channels. This structure makes the disc-typewinding show an obvious layered disc-like appearance.

 ●Electrical performance characteristics

●Smaller inter-disc capacitance: Due to the certain intervals between the disc-shaped coils and the fact that the main electric field distribution is within each disc-shaped coil and between the disc-shaped coil and the iron core, the inter-disc capacitance is relatively small, which is advantageous in some circuit environments that are sensitive to capacitance.

●Relatively large leakage reactance:In disc-typewinding, the current transitions from one disc-shaped coil to the next through connecting wires. The current path is relatively complex, and the interlinking situation of the magnetic lines of force is also relatively complex, resulting in a relatively large leakage reactance. It can be used in the design of transformers that require specific short-circuit impedance.

●Mechanical and heat dissipation performance characteristics

●High mechanical strength: Thanks to the spacers providing support in the axial and radial directions, disc-typewinding have a large end-support surface. They can withstand relatively large axial and radial forces under short-circuit and other conditions, with good stability and can effectively prevent the winding from deforming due to external forces.

●Excellent heat dissipation performance: The spacers between the adjacent disc-shaped coils form good heat dissipation channels. The cooling medium (such as transformer oil) can flow through these channels, effectively carrying away the heat and ensuring that the winding can maintain an appropriate temperature during the operation process.

In Summary

With its unique structural, electrical, mechanical, and heat dissipation performance characteristics, disc-typewinding play a crucial role in specific application scenarios such as high-voltage and large-capacity transformers. When designing transformers, various factors need to be comprehensively considered. Based on the actual requirements of voltage, capacity, heat dissipation, and mechanical stability, disc-typewinding should be rationally selected to ensure the efficient and stable operation of the transformers.

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LuShan, est.1975, is a Chinese professional manufacturer specializing in power transformers and reactors for 49 years. Leading products are single-phase transformer, three-phase isolation transformers,electrical transformer,distribution transformer, step down and step up transformer, low voltage transformer, high voltage transformer, control transformer, toroidal transformer, R-core transformer;DC inductors, AC reactors, filtering reactor, line and load reactor, chokes, filtering reactor, and intermediate,high-frequency products.

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