Burn out windings

Leads to interwinding leakage

Transformer heated up excessively

Delivers reduced secondary voltage

Step up transformer

Step down transformer

Core type transformer

Shell type transformer

To minimize eddy current losses

To increase the hysterisis losses

To maximize eddy current losses

To increase core saturation losses

Ring core transformer

Ferrite core transformer

Silicon steel core transformer

Grain oriented core transformer

Back emf increases

Eddy current decreases

Magnetic flux increases

Energy loss takes place