Comparison between Core-type Transformer and Shell-type Transformer

S.no	Core-type Transformer	Shell-type Transformer
1	The windings surround the core and are placed on the side limbs.
3	Requires more copper material.	Requires less copper material.
4	Two limbs exist.	Three limbs exist.
5	Requires more insulation.	Requires less insulation.
6	Equal distribution of flux on the limbs.	Unequal distribution of flux in the limbs.
7	Two magnetic circuits are formed by the windings.	One magnetic circuit is formed by the windings.
8	More loss exists in terms of leakage flux.	Less loss exists in the system.
9	High output can be achieved.	Less output can be achieved.
10	Easy to maintain.	Difficult to maintain.
11	Natural cooling is possible.	The cooling mechanism exists..