DRUM 2M8762 - Caterpillar

7W-8825 Generator
Table 42
MAIN STATOR AND ROTOR WINDING DATA    
ITEM     STATOR     ROTOR    
Stack Height    
660.4 mm (26.0 inch)    
673.1 mm (26.5 inch)    
Slots     84     -    
Coil Throw     1 - 17     -    
Turns/Coil     1.00     -    
Turns/Pole     -     174    
No. & Wire Size     6 -
3.8 mm (0.148 inch)×
3.9 mm (0.153 inch)    
3.7 mm (0.144 inch)×
7.3 mm (0.288 inch)    
Mean Length Turn    
2504.4 mm (98.6 inch)     -    
Copper Weight    
160.6 kg (354.0 lb)    
320.1 kg (705.6 lb)    
Inside Connection (1)     4 Parallel Star     4 in Series    
Line Leads (No. & Size)     48 - #00     -    
Terminal bolt size     3/8 inch     -    
Low Voltage connected line resistance at 25 ° C (77 ° F)     0.0019 ohms     -    
Field lead resistance at 25 ° C (77 ° F)     -     0.9241 ohms    
EXCITER WINDING DATA    
Exciter Frequency (Hz)     120 Hz     Permanent Magnet Frequency     - Hz    
Exciter Poles     8    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)     Permanent Magnet Stator    
Stack Length    
88.9 mm (3.5 inch)    
88.9 mm (3.5 inch)     -    
Coils/Group     1     2     -    
Slots (Coils)     8     48     -    
Turns (Coils)     160     8     -    
No. & Size Wire     2 - #17 and 1 - #18 SQ     3 - #16 SQ     -    
Coil Throw     1 - 2     1 - 6     -    
Mean Length Turn (Calc.)    
355.6 mm (14.0 inch)    
436.9 mm (17.2 inch)     -    
Copper Weight    
14.0 kg (30.9 lb)    
6.4 kg (14.0 lb)     -    
Insulation     Heavy Nytherm    
Connection (2)     Series     2 Parallel Star     -    
Line Leads     2 - #14     6 - #10     -    
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram 19
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram C