BRAKE HEAD ASSEMBLY 6K9253 - Caterpillar

109-7874 Generator Ar
Table 17
MAIN STATOR AND ROTOR WINDING DATA    
ITEM     STATOR     ROTOR    
Stack Height    
292.10 mm (11.5 inch)    
292.10 mm (11.5 inch)    
Slots     60     4    
Coil Throw     1-12     1-2    
Turns/Coil     2.8 (3-3-2-3-3)     -    
Turns/Pole     -     110 (1)    
No. & Wire Size     10 # 14     #7    
Mean Length Turn    
1214.12 mm (47.8 inch)    
990.6 mm (39 inch)    
Copper Weight    
39.4 kg (87 lb)    
41.68 kg (91.9 lb)    
Inside Connection     2 Parallel Wye     Series    
Line Leads (No. & Size)     6-1 #2/0 (6 total)     #8 (W23004-00)    
Low Voltage connected line resistance at
25° C (77.00000° F)     0.0312 ohms     -    
Field lead resistance at
25° C (77.00000° F)     -     0.762 ohms    
EXCITER WINDING DATA    
Exciter Frequency (Hz)     90 Hz     Permanent Magnet Frequency    
Exciter Poles     6        
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)     Permanent Magnet Stator    
Stack Length    
101.6 mm (4 inch)    
101.6 mm (4 inch)        
Coils/Group     1     2        
Turns (Coils)     140     6        
No. & Size Wire     1 Of #15.5     2 of #15 GCU150        
Coil Throw     1 - 2     1 - 6        
Mean Length Turn    
414.02 mm (16.3 inch)    
355.6 mm (14 inch)        
Resistance at
25° C (77.00000° F)     4.05     0.0746        
Copper Weight    
4.67 kg (10.3 lb)    
2.22 kg (4.9 lb)        
Insulation     Heavy Polyester Polyamide Imide        
Connection (2)     Series     Inter-connection to be #12 Ga. wire        
Line Leads     2 of #14 Ld     6 of #10 Ld        
( 1 ) Wind 10 layers, 11 turns per layer for 110 turns total/pole. Layer wound 12.70 mm (0.5 inch) vent openings to divide layers 3-4-3 in coil heads.
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram D