Question

How many design principles are present in the current transformers?

(a) 2

(b) 3

(c) 4

(d) 5

This question was addressed to me in unit test.

Asked question is from Design Principles topic in chapter Design of Current Transformers (CT) of Design of Electrical Machines

Answer 1

The correct choice is (d) 5

For explanation I would say: There are 5 design principles present in the current transformers. They are core design, secondary current rating, primary current rating, windings and behavior of the transformer under short circuit current.