Transformers Inside Construction

Inside Construction:-

Transformers (Tx) can be classified by 2 types by internal structure-

Core type-
This can be easily made and can be repair easily. But it has 1-3% system loss. This is made of high permeability silicon steel.

Shell type-
Highly efficient, has less than 1% system loss. Difficult to repair damage.

Coils-
For a step down Tx HT coil has more turn but thin coils, cause of this HT side has high voltage but small ampere of current. LT is vice versa. But the power will be same at both HT and LT side.

Lamination
Lamination makes separate one layer from its neighbor layer. Insulation is given by a thin non-conducting layer. Between core and LT coil one layer of Lamination and between LT & HT one layer of Lamination used. No electrical connection cant established between two.