Transformers can be classified into several types based on their construction. Here are the main types:

  1. Core-Type Transformers: In these transformers, the windings surround a considerable part of the core. They are commonly used in low-voltage applications.
  2. Shell-Type Transformers: In these transformers, the core surrounds a considerable part of the windings. They are typically used in high-voltage applications due to their better short-circuit strength.
  3. Berry-Type Transformers: These transformers have a circular core with the windings distributed uniformly. They are less common and used in specialized applications.
  4. Toroidal Transformers: These transformers have a doughnut-shaped core. They are efficient and compact, making them suitable for electronic equipment.
  5. H-Type Transformers: These transformers have an H-shaped core. They are a variation of core-type transformers and are used in medium-voltage applications.

Each type has its own advantages and is selected based on the specific requirements of the application.