Step-down transformer

The transformer which converts  high level ac voltage  to low level ac voltage  is called a step-down transformer.

Number of turns in primary winding is more than number of turns in secondary winding.

Np > Ns

Input voltage at primary terminal is more than output voltage at secondary terminal.

Vp > Vs

Current flowing in primary winding is less than current flowing in secondary winding.

Ip < Is

Step-down Transformer