General construction of transformer

by Debjoy Bhattacharya

Working Principle

Type of Service

Distribution transformer Power transformer

Core & Shell type transformer

Core type Shell type

Core type transformer

Shell type transformer

TRANSFORMER CORE MATERIAL

• Hot rolled steel

flux density-1.45wb/m^2

• Cold rolled steel flux density-1.8wb/m^2

Now a days all kinds of transformer is made by C.R.G.O steel.

CORE CROSS –SECTION

LaminationLamination

Types of laminationL typeI typeE type

L typeI typeE type

L type

I type & E type

winding

Winding machine

Clamping

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