Single-phase transformers can be categorized into three main types based on their construction:
01
Shell-Type Transformer
In a shell-type transformer, the primary and secondary windings are wound around a common core. The core is generally rectangular or square in shape. This type of transformer is commonly used for low to medium voltage applications.
02
Core-Type Transformer
In a core-type transformer, the primary and secondary windings are placed on two limbs of the core with the magnetic circuit completed by a yoke. This type of transformer is widely used in high voltage applications due to its better efficiency and voltage regulation compared to shell-type transformers.
03
Berry-Type Transformer
The berry-type transformer, also known as the 'wound core transformer,' has a core that is made of a continuous strip wound into a rectangular or circular shape. This type of transformer offers good mechanical strength and is often used in special applications where high mechanical strength is required.











