Which type of transformer is best suited for applications that require a low leakage reactance?

For applications needing low leakage reactance, shell-type transformers are generally preferred. This is because shell type transformer provides a shorter magnetic path when compared to the core type.

Types of transformer

Core-type transformer

• The windings are placed around two vertical legs (limbs) of a laminated core. It consists of laminated sheets of silicon steel arranged to form a rectangular core, with the windings wound around the limbs.
• Used in medium to high voltage applications, such as power generation and distribution.

Shell-type transformer

• In shell type transformers, the windings are placed on the central limb, and the core surrounds the windings. The core forms a shell around the windings, providing a double magnetic circuit.
• Used in high-voltage and high-power applications, such as power stations and industrial plants.

Ring-type transformer

• It is designed to measure the current in a single conductor and is typically used in high-current applications. The ring-type CT consists of a toroidal core with a single turn of wire wrapped around it.
• The current flowing through the conductor passes through the core, and the magnetic field generated by the current induces a voltage in the single turn of wire.
• This voltage is then measured and used to calculate the current flowing through the conductor. One can get this Ring Type Current Transformer from us at nominal rates.

Laminated type transformer

• Laminate transformers are mostly used as line frequency, low frequency, and low/high voltage step-up, step-down transformers.
• Two coils are wound over a core such that they are magnetically coupled. The two coils are known as the primary and the secondary.