To remove coils from core, heat in a moderate over
temperature 302°F (150°C) to facilitate removal.
Single coils should not be placed as adjacent parts of
the winding may be damaged during coil removal.
Apply varnish to any damaged areas of
Replace damaged excitor rotor.
Rebuild. Rebuild exciter rotor as follows: (See
Inspect winding slots for any sharp corners
at edge and in slot. Clean up as necessary.
Wind armature coils using
number of turns and wire per winding date.
(See figure 11-20).
Sleeve leads with flexible braided glass
Apply slot liner insulation 5-5-5 (polyester-
mylarpolyester) as shown in slot detail, Item
A, figure 11-20.
Make pole series wye connections per
winding diagram. (See figure 11-20.)
Insert slot wedge (Item B) in slot as shown
in slot detail and extend 1/4 inch (0.35 mm)
Make high potential test. Test voltage to be
Figure 11-20. Exciter Rotor Winding Data