Question

What is the definition of the ideal current transformer?

(a) the primary and secondary windings are in exact ratio and same phase relationship

(b) the primary winding and secondary winding ratio is greater than 1 and same phase relationship

(c) the primary and secondary winding ratio is lesser than 1 are in exact ratio and different phase relationship

(d) the primary and secondary windings ratio is greater than 1 and different phase relationship

This question was addressed to me during an interview for a job.

I'd like to ask this question from Errors topic in chapter Design of Current Transformers (CT) of Design of Electrical Machines

Answer 1

Right choice is (a) the primary and secondary windings are in exact ratio and same phase relationship

Explanation: The primary and secondary winding ratio are same. The phase relationship of the windings are also same.