Dry-type transformers use various materials for their windings, depending on the specific application and requirements. The most common materials used for the windings in dry-type transformers are:
Copper
Copper is the most commonly used material for transformer windings in dry-type transformers. It has excellent electrical conductivity, high thermal conductivity, and good mechanical properties. Copper windings offer low resistance, low losses, and good thermal dissipation, making them efficient and reliable.
Aluminum
Aluminum windings are also used in dry-type transformers, especially for larger transformers where cost considerations are important. Aluminum has lower conductivity compared to copper, but it is lighter and less expensive. Transformers with aluminum windings may have slightly higher resistance and losses compared to copper windings.
Both copper and aluminum windings can be either round wire or strip conductors, depending on the design and application of the transformer. The choice between copper and aluminum windings depends on factors such as cost, electrical conductivity requirements, size limitations, and specific performance criteria.
