Transformer winding refers to the coils of wire wrapped around the core of a transformer, which is an electrical device used to change voltage levels in power systems. These windings are typically made of copper or aluminum and are essential for the transformer’s operation, as they create magnetic fields that facilitate the transfer of electrical energy between the primary and secondary sides. There are usually two types of windings: the primary winding, which receives input voltage, and the secondary winding, which delivers output voltage. The number of turns in each winding determines the voltage transformation ratio, making proper design and construction crucial for efficient energy transfer and system performance.