Question

What is the maximum current per conductor for helical winding?

(a) from 12 A and above 12 A

(b) from 300 A and above 300 A

(c) upto 40 A

(d) upto 80 A

I have been asked this question during a job interview.

I want to ask this question from Design of Core and Winding in division Design of Transformers of Design of Electrical Machines

Answer 1

Correct answer is (b) from 300 A and above 300 A

Explanation: The maximum current per conductor for continuous disc winding is from 12 A and above 12 A. The maximum current per conductor for cross over winding is upto 40 A and the maximum current per conductor for cylindrical winding with circular conductors is upto 80 A.