Question

What is the formula for the outer diameter of the stator?

(a) outer diameter = inner diameter + depth of the slots + depth of armature core

(b) outer diameter = inner diameter + 2*depth of the slots + depth of armature core

(c) outer diameter = inner diameter + 2*(depth of the slots + depth of armature core)

(d) outer diameter = inner diameter + depth of the slots + 2*depth of armature core

The question was asked in semester exam.

I want to ask this question from Slot Dimensions topic in portion Design of Synchronous Machines of Design of Electrical Machines

Answer 1

Right option is (c) outer diameter = inner diameter + 2*(depth of the slots + depth of armature core)

The best I can explain: The depth of the armature core is calculated and the depth of the slots is also calculated. The inner diameter is calculated and substituting the outer diameter is obtained.