Question

How many techniques are used to plot the field form in salient pole machines?

(a) 2

(b) 3

(c) 4

(d) 5

The question was asked during an interview for a job.

I want to ask this question from Field Form, Harmonic Analysis of Flux Distribution Curve in section Principles of Magnetic Circuit Design of Design of Electrical Machines

Answer 1

Correct choice is (a) 2

To explain: There are 2 techniques which are used to plot the field form in salient pole machines. They are carter’s fringe curves and the flux plotting by method of curvilinear squares.