VALVE GP-ACCUMULATOR CHARGING 4230094 - Caterpillar

311-1141 Generator Gp
Table 14
1844 Frame 480 v
Main Stator and Main Rotor Winding Data    
Arrangement with Stator RTDs     311-1142            
Main Stator and rotor Winding Data     450            
Item     Main Stator     Main Rotor        
Stack Length    
685.8 mm (27 inch)    
698.50 mm (27.5 inch)        
Slots     72     4        
Span     1 - 13     1 - 2        
Turns per Coil     1     -        
Turns per Pole     -     180 (3)        
Number and Wire Size (AWG)     (5 high) .144 x (5 wide) .325     1 - #4 Sq        
Mean Length Turn    
2578.10 mm (101.5 inch)    
1996.694 mm (78.61 inch)        
Copper Weight    
287.1 kg (633 lb)    
332.9 kg (734 lb)        
Internal Connection     4 Parallel Wye     Series        
Internal Connection Diagram     406866
Connection Diagram 20 (1).     -        
Line Leads Number and Size (AWG)     6 Leads, 8 - #4/0 each (48 Total)     2 - #8        
Low VACage Connected Line to Line Resistance at
25° C (77.00° F)     0.00107     -        
Field Resistance at
25° C (77.00° F)     -     1.014        
I. E. Winding                
Turns per Coil: Span                
Number and Wire Size (AWG)                
Resistance at
25° C (77.00° F)                
I. E. Winding                
Turns per Coil: Span                
Number and Wire Size (AWG)                
Resistance at
25° C (77.00° F)                
Internal Connection Diagram                
Exciter Winding Data    
Exciter     Stator (Field)     Rotor (Armature)     Permanent Magnet Stator    
Exciter Frequency (Hz)     -     120     240    
Exciter Poles     8     8     4    
Stack Length    
101.6 mm (4 inch)    
101.6 mm (4 inch)    
25.4 mm (1 inch)    
Coils per Group     1     2     1    
Turns per Coil     300     10     24    
Number and Wire Size (AWG)     2 - #18     3 - #17     2 - #18    
Pitch     1 - 2     1 - 6     1 - 4    
Mean Length Turn    
425.196 mm (16.74 inch)    
233.426 mm (9.19 inch)    
208.28 mm (8.2 inch)    
Resistance at
25° C (77.00° F)     10.87     0.0527     0.87    
Copper Weight    
15.19 kg (33.5 lb)    
5.85 kg (12.9 lb)    
1.791 kg (3.95 lb)    
Magnet Wire Type