ALTERNATOR GP-CHARGING 1904174 - Caterpillar

136-6641 Generator Ar
Table 24
MAIN STATOR AND ROTOR WINDING DATA (4)    
ITEM     STATOR     ROTOR    
Stack Height    
335.28 mm (13.2 inch)    
335.28 mm (13.2 inch)    
Slots     72        
Coil Throw     1-13     1 - 2    
Turns/Coil     2     -    
Turns/Pole     -     180    
No. & Wire Size     17 # 14     # 6-1/2 Round    
Mean Length Turn    
1447.8 mm (57 inch)    
1127.76 mm (44.4 inch)    
Copper Weight    
67.13132 kg (148 lb)    
87.54287 kg (193 lb)    
Inside Connection (1)     2 Parallel Wye     Series    
Line Leads (No. & Size)     6-2 of #1/0 (12 Total)     #8    
Low Voltage connected line resistance at
25° C (77.0° F)     0.0203 ohms     -    
Field lead resistance at
25° C (77.0° F)     -     1.27 ohms    
EXCITER WINDING DATA    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)     Permanent Magnet Stator    
Exciter Frequency (Hz)     90 Hz     90 Hz     240 Hz    
Exciter Poles     6         16    
Stack Length    
127.0 mm (5 inch)    
127.0 mm (5 inch)    
25.4 mm (1 inch)    
Coils/Group     1     1     1    
Turns (Coils)     140     8     12    
No. & Size Wire     15-1/2     2 - #16     4 - #18    
Coil Throw     1 - 2     1 - 6     1-4 29-35Lds    
Mean Length Turn    
464.82 mm (18.3 inch)        
208.28 mm (8.2 inch)    
Resistance at
25° C (77.0° F)     4.68 ohms     0.145 ohms     0.239 ohms    
Copper Weight    
5.21 kg (11.5 lb)    
2.90 kg (6.4 lb)    
1.791 kg (3.95 lb)    
Connection (2)     Series     2 Parallel Wye     Wye    
Line Leads     #14     3 - #10     3-1 OF #14 (3 total)    
( 4 ) Tap voltage regulator leads 20, 22, 24 Nine (9) turns from neutral (4 coils and 1 turn) in coil groups 6, 4, 2 respectively
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram 63
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram D