Research Article

A Comprehensive Analysis on Transient Electromagnetic Force Behavior of Stator Windings in Turbo-Generator

Figure 16

Real insulation damage photos in different generators: (a) nose-top damaged in a 200MW generator (the black area indicates the insulation burned districts), (b) nose-top damaged in a 15MW generator, (c) the middle of the involute part damaged in a 20MW generator, and (d) joint part damaged in a 300MW generator (caused by overstress-induced spacer deformation and friction).
(a)
(b)
(c)
(d)