Question

What happens if the utilization factor gets improved?

(a) core area increases and the volt/turns decreases

(b) core area increases and the volt/turns increases

(c) core area decreases and the volt/turn decreases

(d) core area decreases and the volt/turn increases

The question was asked in an online quiz.

This is a very interesting question from Design of Core and Winding topic in chapter Design of Transformers of Design of Electrical Machines

Answer 1

The correct option is (b) core area increases and the volt/turns increases

The best I can explain: When the utilization factor increases the core area gets increased. This leads to the increase in the volt/turn for any particular core diameter and specified flux density.