MOTOR GP-PISTON 4230096 - Caterpillar

331-3051 Generator Gp
Table 37
3055 Frame 13800 v
Main Stator and Main Rotor Winding Data    
Arrangement with Stator RTDs     331-3052            
Main Stator and rotor Winding Data     450            
Item     Main Stator     Main Rotor        
Stack Length    
685.8 mm (27 inch)    
685.8 mm (27 inch)        
Slots     60     4        
Span     1 - 11     1 - 2        
Turns per Coil     7     -        
Turns per Pole     -     198 (3)        
Number and Wire Size (AWG)     (2 high) .102 x (2 wide) .204     #4 Sq        
Mean Length Turn    
2786.38 mm (109.7 inch)    
1879.6 mm (74 inch)        
Copper Weight    
683.1 kg (1506 lb)    
387.3 kg (854 lb)        
Internal Connection     Series Wye     Series        
Internal Connection Diagram     407080
Connection Diagram 10 (1).     -        
Line Leads Number and Size (AWG)     6 - 1 of #2 (6 Total)     #6        
Low VACage Connected Line to Line Resistance at
25° C (77.00° F)     0.3     -        
Field Resistance at
25° C (77.00° F)     -     1.17        
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)             240    
Exciter Poles     24     8     4    
Stack Length    
76.2 mm (3 inch)    
76.2 mm (3 inch)    
25.4 mm (1.000 inch)    
Coils per Group     2     3     1    
Turns per Coil     190     4     24    
Number and Wire Size (AWG)     3- #18     8 - #16     2 - #18    
Pitch     1 - 2     1 - 4     1 - 4    
Mean Length Turn    
444.50 mm (17.5 inch)    
444.50 mm (17.5 inch)    
208.28 mm (8.2 inch)    
Resistance at
25° C (77.00° F)     9.6     0.043     0.87    
Copper Weight    
30.25 kg (66.7 lb)    
9.75 kg (21.5 lb)    
1.791 kg (3.95 lb)    
Magnet Wire Type     Heavy Polyester