SPRING 2313667 - Caterpillar

121-6860 Generator
Table 37
MAIN STATOR AND ROTOR WINDING DATA    
ITEM     STATOR     ROTOR    
Stack Height    
355.6 mm (14.0 inch)    
368.3 mm (14.5 inch)    
Slots     72     -    
Coil Throw     1 - 14     -    
Turns/Coil     3     -    
Turns/Pole     -     216    
No. & Wire Size     13 - #13     #6 SQ    
Mean Length Turn    
1739.9 mm (68.5 inch)     -    
Copper Weight    
116.1 kg (256.0 lb)    
164.2 kg (362.0 lb)    
Inside Connection (1)     4 Parallel Star     4 in Series    
Line Leads (No. & Size)     24 - #1     -    
Terminal bolt size     3/8 inch     -    
Low Voltage connected line resistance at
25° C (77.0° F)     0.00826 ohms     -    
Field lead resistance at
25° C (77.0° F)     -     1.214 ohms    
EXCITER WINDING DATA    
Exciter Frequency (Hz)     90 Hz     Permanent Magnet Frequency     - Hz    
Exciter Poles     6    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)     Permanent Magnet Stator    
Stack Length    
127.0 mm (5.0 inch)    
127.0 mm (5.0 inch)     -    
Coils/Group     1     1     -    
Slots (Coils)     6     36     -    
Turns (Coils)     140     8     -    
No. & Size Wire     1 - #15.5     2 - #16     -    
Coil Throw     1 - 2     1 - 6     -    
Mean Length Turn    
464.8 mm (18.3 inch)    
464.8 mm (18.3 inch)     -    
Copper Weight    
5.2 kg (11.5 lb)    
2.7 kg (6.0 lb)     -    
Insulation     Heavy Polyester Polyamide Imide    
Connection (2)     Series     2 Parallel Star     -    
Line Leads     2 - #14     3 - #10     -    
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram 19
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram D