Transformer windings are the wires that are wound on the solenoid core inside the transformer. It is the core component of a transformer and is used to transfer electrical energy and to realize voltage transformation.

Main Functions: Transformer windings have two main functions:

   - Transmission of electrical energy: The winding transfers electrical energy from the input side to the output side through wires, realizing the transformation and transmission of electrical energy.

   - Voltage transformation: The winding method and the number of turns determine the voltage ratio between the input side and the output side, which enables the transformer to realize the rise and fall of voltage transformation. 2.



Winding types: According to different functions and structural requirements, transformer windings can be divided into the following types:

   - Primary Winding: The primary winding is the one connected to the input power supply and is responsible for receiving the input voltage and transmitting the electrical energy.

   - Secondary Winding: The secondary winding is the winding connected to the output load and is responsible for providing the output voltage and current.

   - Autotransformer Winding: Autotransformer Winding is a special type of winding, which has the functions of both main winding and secondary winding, and realizes voltage transformation by sharing part of the winding.

   - Regulating winding (Tapping Winding): regulating winding is located in the main winding or sub-winding, in the need to regulate the output voltage can be changed by changing the position of the junction point to achieve voltage regulation.

Winding material: transformer winding usually use enameled wire (enameled wire) or bare copper wire (bare copper wire) as wire material. Enameled wire is a kind of insulation covered copper wire, has good insulating properties and conductive properties, can prevent short-circuit between the windings. Bare copper wire on the other hand needs to be insulated by insulating material.

Winding Design Considerations: The following factors need to be considered when designing transformer windings:

   - Turns Ratio: Determine the relationship between the number of turns in the main winding and the secondary winding according to the required voltage transformation ratio.

   - Current capacity: according to the load demand and the rated power of the transformer, determine the cross sectional area of the wire and current capacity of the winding.

   - Insulation material: Select the appropriate insulation material and insulation layer thickness to ensure the insulation performance between windings and between windings and core.

   - Space constraints: Consider the size and layout constraints of the transformer and design the appropriate winding shape and layout.

The design and manufacture of transformer windings requires strict adherence to electrical safety standards and codes to ensure safe operation and efficient performance. For large transformers, windings are usually wound in layers and insulated to improve voltage tolerance and insulation strength. At the same time, the quality and reliability of the windings have a significant impact on the overall performance and life of the transformer.