Question

During the pressing and consolidation by how much is the thickness of the interturn insulation reduced to?

(a) 0.36 mm to 0.26 mm

(b) 0.36 mm to 0.25 mm

(c) 0.30 mm to 0.25 mm

(d) 0.32 mm to 0.25 mm

The question was asked during an online interview.

Origin of the question is Design of Field Winding topic in chapter Design of Synchronous Machines of Design of Electrical Machines

Answer 1

Correct option is (a) 0.36 mm to 0.26 mm

To elaborate: The thickness of the interturn insulation before the pressing and consolidation is 0.36 mm. After the process of pressing and consolidation the thickness of the interturn insulation is reduced to 0.26 mm.