Question

Stepping of the core is implemented in the core to _________

(a) reduce conductor material and copper losses

(b) reduce core loss

(c) to provide mechanical strength

(d) to reduce magnetizing current

I have been asked this question during a job interview.

My query is from Transformer Construction in section Transformers of Electrical Machines

Answer 1

Right choice is (a) reduce conductor material and copper losses

The best I can explain: Stepping of the core is done so that the copper material reduces.