Question

What is the use of the turns compensation in current transformer?

(a) to increases the ratio error

(b) to reduce the ratio error

(c) to increase the phase angle error

(d) to reduce the phase angle error

This question was addressed to me in class test.

My enquiry is from Turns Compensation topic in section Design of Current Transformers (CT) of Design of Electrical Machines

Answer 1

The correct option is (b) to reduce the ratio error

The explanation is: There are 2 types of errors in the current transformer. The turns compensation is used to reduce the ratio error.