Question

What should be the range of current density in the stator windings?

(a) 2-5 A per mm^2

(b) 4-5 A per mm^2

(c) 3-5 A per mm^2

(d) 2-3 A per mm^2

I had been asked this question in a job interview.

My question is taken from Stator Winding topic in section Three Phase Induction Motor of Design of Electrical Machines

Answer 1

Right choice is (c) 3-5 A per mm^2

For explanation: The minimum value for the current density in stator winding is 3 A per mm^2. The maximum value of the current density in the stator windings should not exceed 5 A per mm^2.