Comparison between core and shell type transformer

Core Type Transformer Shell type transformer
The core has only one magnetic circuit. It has two magnetic circuits.
Core has two limbs. Core has three limbs.
It has less mechanical protection to coil. It has better mechanical protection to coil.
It has better cooling since more surface is exposed to atmosphere. Cooling is not very effective.
Natural cooling is provided. Natural cooling cannot provide
This transformer is easy to repair. This transformer is not easy to repair.
The winding is surrounded considerable part of core. Core is surrounded considerable part of winding of transformer.

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