CAP 1784968 - Caterpillar

144-1776 Generator Ar
Table 32
MAIN STATOR AND ROTOR WINDING DATA (4)    
ITEM     STATOR     ROTOR    
Stack Height    
508.0 mm (20 inch)    
520.70 mm (20.5 inch)    
Slots     60     4    
Coil Throw     1-11     1-2    
Turns/Coil     1     -    
Turns/Pole     -     216 (3)    
No. & Wire Size     41 #13     #6 Square Heavy Film    
Mean Length Turn    
1823.974 mm (71.81 inch)    
1584.96 mm (62.4 inch)    
Copper Weight    
106.1 kg (234 lb)    
215.4 kg (475 lb)    
Inside Connection (1)     2 Parallel Wye        
Line Leads (No. & Size)     12-4 of #000 (48 Total)     #8    
Low Voltage connected line resistance at
25° C (77.0° F)     0.0012 ohms     -    
Field lead resistance at
25° C (77.0° F)     -     1.488 ohms    
EXCITER WINDING DATA    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)     Permanent Magnet Stator    
Exciter Frequency (Hz)     60 Hz     120 Hz     240 Hz    
Exciter Poles     8     8     16    
Stack Length    
88.90 mm (3.5 inch)    
88.90 mm (3.5 inch)    
25.4 mm (1 inch)    
Coils/Group     1     1     1    
Turns (Coils)     175     18     12    
No. & Size Wire     2 of #16     4 #18     4 - #18    
Coil Throw     1 - 2     1 - 6     1-4 29-35 Lds    
Mean Length Turn    
355.6 mm (14 inch)    
419.10 mm (16.5 inch)    
208.28 mm (8.2 inch)    
Resistance at
25° C (77.0° F)     3.8 ohms     0.159 ohms     0.239 ohms    
Copper Weight    
12.92 kg (28.5 lb)    
5.53 kg (12.2 lb)    
1.791 kg (3.95 lb)    
Connection (2)     Series     2 Parallel Wye     Wye    
Line Leads     2 - #14     3 of #10 (3 Total)     3-1 OF #14 (3 total)    
( 4 ) Special Res. For Global Design.
( 3 ) 12 layers, 18 turns per layer. Layer wound with 12.70 mm (0.5 inch) vent opening to divide layers 6-6 in coil head
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram 63
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram D