SR4 and SR4B Electric Power Generation Rewind Data Caterpillar


Winding Data for 5N-9081 Generator through 5N-9432 Generator

Usage:

SR4B 1BN

5N-9081 Generator

Table 1
MAIN STATOR AND ROTOR WINDING DATA    
ITEM     STATOR     ROTOR
(RANDOM WOUND)    
ROTOR
(FORM WOUND)    
Stack Height    
152.4 mm (6.0 inch)    

152.4 mm (6.0 inch)    
-    
Slots     60     -     -    
Coil Throw     1 - 12     -     -    
Turns/Coil     5.6 (6,6,4,6,6)     -     -    
Turns/Pole     -     110     -    
No. & Wire Size     6 - #15     1 - #17     -    
Mean Length Turn    
934.7 mm (36.8 inch)    
-     -    
Copper Weight    
29.2 kg (64.3 lb)    

438.1 kg (965.9 lb)    
-    
Inside Connection (1)     4/2 Parallel Star     4 in Series     -    
Line Leads (No. & Size)     10 - #4     -     -    
Terminal bolt size     3/8 inch     -     -    
Low Voltage connected line resistance at 25 ° C (77 ° F)     0.025 ohms     -     -    
Field lead resistance at 25 ° C (77 ° F)     -     0.56 ohms     -    
EXCITER WINDING DATA    
Exciter Frequency (Hz)     90 Hz    
Exciter Poles     6    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)    
Stack Length    
76.2 mm (3.0 inch)    

76.2 mm (3.0 inch)    
Coils/Group     1     2    
Slots (Coils)     6     36    
Turns (Coils)     105     6    
No. & Size Wire     1 - #15     2 - #14.5    
Coil Throw     1 - 2     1 - 6    
Mean Length Turn (Calc.)    
365.8 mm (14.4 inch)    

304.8 mm (12.0 inch)    
Copper Weight    
3.9 kg (8.5 lb)    

3.4 kg (7.5 lb)    
Insulation     Heavy Nytherm    
Connection (2)     Series     2 Parallel Star    
Line Leads     #14 -
965.2 mm (38.0 inch)    
#10 -
152.4 mm (6.0 inch)    
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram #31
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram A

5N-9082 Generator

Table 2
MAIN STATOR AND ROTOR WINDING DATA    
ITEM     STATOR     ROTOR
(RANDOM
WOUND)    
ROTOR
(FORM
WOUND)    
Stack Height    
228.6 mm (9.0 inch)    

228.6 mm (9.0 inch)    
-    
Slots     60     -     -    
Coil Throw     1 - 12     -     -    
Turns/Coil     3.4(3,4,3,4,3)     -     -    
Turns/Pole     -     96     -    
No. & Wire Size     6 - #15     1 - #9     -    
Mean Length Turn    
960.1 mm (37.8 inch)    
-     -    
Copper Weight    
18.6 kg (40.95 lb)    

18.2 kg (40.04 lb)    
-    
Inside Connection (1)     4/2 Parallel Star     4 in Series     -    
Line Leads (No. & Size)     10 - #4     -     -    
Terminal bolt size     3/8 inch     -     -    
Low Voltage connected line
resistance at 25 ° C (77 ° F)    
0.0148 ohms     -     -    
Field lead resistance at
25 ° C (77 ° F)    
-     0.80 ohms     -    
EXCITER WINDING DATA    
Exciter Frequency (Hz)     90 Hz    
Exciter Poles     6    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)    
Stack Length    
50.8 mm (2.0 inch)    

50.8 mm (2.0 inch)    
Coils/Group     1     2    
Slots (Coils)     6     36    
Turns (Coils)     160     9    
No. & Size Wire     1 - #16.5     1 - #14    
Coil Throw     1 - 2     1 - 6    
Mean Length Turn
(Calculated)    

113.3 mm (4.46 inch)    

254.0 mm (10.0 inch)    
Copper Weight    
2.7 kg (6.0 lb)    

1.5 kg (3.4 lb)    
Insulation     Heavy Nytherm    
Connection (2)     Series     2 Parallel Star    
Line Leads     #14

914.4 mm (36.0 inch)    
#10

139.7 mm (5.5 inch)    
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram #31
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram E

5N-9083 Generator

Table 3
MAIN STATOR AND ROTOR WINDING DATA    
ITEM     STATOR     ROTOR
(RANDOM
WOUND)    
ROTOR
(FORM
WOUND)    
Stack Height    
203.2 mm (8.0 inch)    

203.2 mm (8.0 inch)    
-    
Slots     60     -     -    
Coil Throw     1 - 14     -     -    
Turns/Coil     3.4(4,3,3,3,4)     -     -    
Turns/Pole     -     110     -    
No. & Wire Size     8 - #14     1 - #7     -    
Mean Length Turn    
1135.4 mm (44.7 inch)    
-     -    
Copper Weight    
34.9 kg (77.0 lb)    

34.2 kg (75.4 lb)    
-    
Inside Connection (1)     4/2 Parallel Star     4 in Series     -    
Line Leads (No. & Size)     20 - #6     -     -    
Terminal bolt size     3/8 inch     -     -    
Low Voltage connected line
resistance at 25 ° C (77 ° F)    
0.01 ohms     -     -    
Field lead resistance at
25 ° C (77 ° F)    
-     0.63 ohms     -    
EXCITER WINDING DATA    
Exciter Frequency (Hz)     90 Hz    
Exciter Poles     6    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)    
Stack Length    
76.2 mm (3.0 inch)    

76.2 mm (3.0 inch)    
Coils/Group     1     2    
Slots (Coils)     6     36    
Turns (Coils)     95     6    
No. & Size Wire     1 - #14.5     2 - #14.5    
Coil Throw     1 - 2     1 - 6    
Mean Length Turn
(Calculated)    

365.8 mm (14.4 inch)    

304.8 mm (12.0 inch)    
Copper Weight    
3.9 kg (8.7 lb)    

3.4 kg (7.5 lb)    
Insulation     Heavy Nytherm    
Connection (2)     Series     2 Parallel Star    
Line Leads     #14

965.2 mm (38.0 inch)    
#10

152.4 mm (6.0 inch)    
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram #01
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram A

5N-9084 Generator

Table 4
MAIN STATOR AND ROTOR WINDING DATA    
ITEM     STATOR     ROTOR
(RANDOM
WOUND)    
ROTOR
(FORM
WOUND)    
Stack Height    
152.4 mm (6.0 inch)    

152.4 mm (6.0 inch)    
-    
Slots     60     -     -    
Coil Throw     1 - 12     -     -    
Turns/Coil     5     -     -    
Turns/Pole     -     110     -    
No. & Wire Size     7 - #15     1 - #7     -    
Mean Length Turn    
934.7 mm (36.8 inch)    
-     -    
Copper Weight    
29.3 kg (64.7 lb)    

29.9 kg (65.9 lb)    
-    
Inside Connection (1)     4/2 Parallel Star     4 in Series     -    
Line Leads (No. & Size)     20 - #6     -     -    
Terminal bolt size     3/8 inch     -     -    
Low Voltage connected line
resistance at 25 ° C (77 ° F)    
0.01 ohms     -     -    
Field lead resistance at
25 ° C (77 ° F)    
-     0.63 ohms     -    
EXCITER WINDING DATA    
Exciter Frequency (Hz)     90 Hz    
Exciter Poles     6    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)    
Stack Length    
76.2 mm (3.0 inch)    

76.2 mm (3.0 inch)    
Coils/Group     1     2    
Slots (Coils)     6     36    
Turns (Coils)     95     6    
No. & Size Wire     1 - #14.5     2 - #14.5    
Coil Throw     1 - 2     1 - 6    
Mean Length Turn
(Calculated)    

365.8 mm (14.4 inch)    

304.8 mm (12.0 inch)    
Copper Weight    
3.9 kg (8.7 lb)    

3.4 kg (7.5 lb)    
Insulation     Heavy Nytherm    
Connection (2)     Series     2 Parallel Star    
Line Leads     #14

965.2 mm (38.0 inch)    
#10

152.4 mm (6.0 inch)    
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram #31
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram A

5N-9085 Generator

Table 5
MAIN STATOR AND ROTOR WINDING DATA    
ITEM     STATOR     ROTOR
(RANDOM
WOUND)    
ROTOR
(FORM
WOUND)    
Stack Height    
228.6 mm (9.0 inch)    

228.6 mm (9.0 inch)    
-    
Slots     60     -     -    
Coil Throw     1 - 12     -     -    
Turns/Coil     5     -     -    
Turns/Pole     -     96     -    
No. & Wire Size     5 - #15     1 - #9     -    
Mean Length Turn    
960.1 mm (37.8 inch)    
-     -    
Copper Weight    
17.2 kg (37.98 lb)    

18.2 kg (40.04 lb)    
-    
Inside Connection (1)     4/2 Parallel Star     4 in Series     -    
Line Leads (No. & Size)     10 - #6     -     -    
Terminal bolt size     3/8 inch     -     -    
Low Voltage connected line
resistance at 25 ° C (77 ° F)    
0.033 ohms     -     -    
Field lead resistance at
25 ° C (77 ° F)    
-     0.80 ohms     -    
EXCITER WINDING DATA    
Exciter Frequency (Hz)     90 Hz    
Exciter Poles     6    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)    
Stack Length    
50.8 mm (2.0 inch)    

50.8 mm (2.0 inch)    
Coils/Group     1     2    
Slots (Coils)     6     36    
Turns (Coils)     160     9    
No. & Size Wire     1 - #16.5     1 - #14    
Coil Throw     1 - 2     1 - 6    
Mean Length Turn
(Calculated)    

113.3 mm (4.46 inch)    

254.0 mm (10.0 inch)    
Copper Weight    
2.7 kg (6.0 lb)    

1.5 kg (3.4 lb)    
Insulation     Heavy Nytherm    
Connection (2)     Series     2 Parallel Star    
Line Leads     #14

914.4 mm (36.0 inch)    
#10

139.7 mm (5.5 inch)    
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram #05
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram E

Note: Wires 20, 22, and 24 are brought out as tap connections between 4th and 5th coil (18 turns from T0).

5N-9086 Generator

Table 6
MAIN STATOR AND ROTOR WINDING DATA    
ITEM     STATOR     ROTOR
(RANDOM
WOUND)    
ROTOR
(FORM
WOUND)    
Stack Height    
203.2 mm (8.0 inch)    

203.2 mm (8.0 inch)    
-    
Slots     60     -     -    
Coil Throw     1 - 12     -     -    
Turns/Coil     4.65(4,4,5,5,5)     -     -    
Turns/Pole     -     110     -    
No. & Wire Size     7 - #15     1 - #7     -    
Mean Length Turn    
1036.3 mm (40.8 inch)    
-     -    
Copper Weight    
27.2 kg (60.0 lb)    

34.2 kg (75.4 lb)    
-    
Inside Connection (1)     4/2 Parallel Star     4 in Series     -    
Line Leads (No. & Size)     10 - #4     -     -    
Terminal bolt size     3/8 inch     -     -    
Low Voltage connected line
resistance at 25 ° C (77 ° F)    
0.0192 ohms     -     -    
Field lead resistance at
25 ° C (77 ° F)    
-     0.630 ohms     -    
EXCITER WINDING DATA    
Exciter Frequency (Hz)     90 Hz    
Exciter Poles     6    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)    
Stack Length    
76.2 mm (3.0 inch)    

76.2 mm (3.0 inch)    
Coils/Group     1     2    
Slots (Coils)     6     36    
Turns (Coils)     105     6    
No. & Size Wire     1 - #15     2 - #14.5    
Coil Throw     1 - 2     1 - 6    
Mean Length Turn
(Calculated)    

365.8 mm (14.4 inch)    

304.8 mm (12.0 inch)    
Copper Weight    
3.9 kg (8.5 lb)    

3.4 kg (7.5 lb)    
Insulation     Heavy Nytherm    
Connection (2)     Series     2 Parallel Star    
Line Leads     #14

965.2 mm (38.0 inch)    
#10

152.4 mm (6.0 inch)    
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram #05
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram A

Note: Wires 20, 22, and 24 are brought out as tap connections between 4th and 5th coil (18 turns from T0).

5N-9087 Generator

Table 7
MAIN STATOR AND ROTOR WINDING DATA    
ITEM     STATOR     ROTOR
(RANDOM
WOUND)    
ROTOR
(FORM
WOUND)    
Stack Height    
152.4 mm (6.0 inch)    

152.4 mm (6.0 inch)    
-    
Slots     60     -     -    
Coil Throw     1 - 12     -     -    
Turns/Coil     7     -     -    
Turns/Pole     -     110     -    
No. & Wire Size     6 - #16     1 - #7     -    
Mean Length Turn    
934.7 mm (36.8 inch)    
-     -    
Copper Weight    
27.9 kg (61.6 lb)    

29.9 kg (65.9 lb)    
-    
Inside Connection (1)     4/2 Parallel Star     4 in Series     -    
Line Leads (No. & Size)     10 - #6     -     -    
Terminal bolt size     3/8 inch     -     -    
Low Voltage connected line
resistance at 25 ° C (77 ° F)    
0.0366 ohms     -     -    
Field lead resistance at
25 ° C (77 ° F)    
-     0.56 ohms     -    
EXCITER WINDING DATA    
Exciter Frequency (Hz)     90 Hz    
Exciter Poles     6    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)    
Stack Length    
76.2 mm (3.0 inch)    

76.2 mm (3.0 inch)    
Coils/Group     1     2    
Slots (Coils)     6     36    
Turns (Coils)     105     6    
No. & Size Wire     1 - #15     2 - #14.5    
Coil Throw     1 - 2     1 - 6    
Mean Length Turn
(Calculated)    

365.8 mm (14.4 inch)    

304.8 mm (12.0 inch)    
Copper Weight    
3.9 kg (8.5 lb)    

3.4 kg (7.5 lb)    
Insulation     Heavy Nytherm    
Connection (2)     Series     2 Parallel Star    
Line Leads     #14

965.2 mm (38.0 inch)    
#10

152.4 mm (6.0 inch)    
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram #31
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram A

Note: Wires 20, 22, and 24 are brought out as tap connections between 4th and 5th coil (18 turns from T0).

5N-9088 Generator

Table 8
MAIN STATOR AND ROTOR WINDING DATA    
ITEM     STATOR     ROTOR
(RANDOM
WOUND)    
ROTOR
(FORM
WOUND)    
Stack Height    
228.6 mm (9.0 inch)    

228.6 mm (9.0 inch)    
-    
Slots     60     -     -    
Coil Throw     1 - 12     -     -    
Turns/Coil     4     -     -    
Turns/Pole     -     96     -    
No. & Wire Size     5 - #15     1 - #9     -    
Mean Length Turn    
960.1 mm (37.8 inch)    
-     -    
Copper Weight    
17.2 kg (37.98 lb)    

18.2 kg (40.04 lb)    
-    
Inside Connection (1)     4/2 Parallel Star     4 in Series     -    
Line Leads (No. & Size)     10 - #6     -     -    
Terminal bolt size     3/8 inch     -     -    
Low Voltage connected line
resistance at 25 ° C (77 ° F)    
0.021 ohms     -     -    
Field lead resistance at
25 ° C (77 ° F)    
-     0.80 ohms     -    
EXCITER WINDING DATA    
Exciter Frequency (Hz)     90 Hz    
Exciter Poles     6    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)    
Stack Length    
50.8 mm (2.0 inch)    

50.8 mm (2.0 inch)    
Coils/Group     1     2    
Slots (Coils)     6     36    
Turns (Coils)     160     9    
No. & Size Wire     1 - #16.5     1 - #14    
Coil Throw     1 - 2     1 - 6    
Mean Length Turn
(Calculated)    

113.3 mm (4.46 inch)    

254.0 mm (10.0 inch)    
Copper Weight    
2.7 kg (6.0 lb)    

1.5 kg (3.4 lb)    
Insulation     Heavy Nytherm    
Connection (2)     Series     2 Parallel Star    
Line Leads     #14

914.4 mm (36.0 inch)    
#10

139.7 mm (5.5 inch)    
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram #31
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram E

5N-9089 Generator

Table 9
MAIN STATOR AND ROTOR WINDING DATA    
ITEM     STATOR     ROTOR
(RANDOM
WOUND)    
ROTOR
(FORM
WOUND)    
Stack Height    
203.2 mm (8.0 inch)    

203.2 mm (8.0 inch)    
-    
Slots     60     -     -    
Coil Throw     1 - 12     -     -    
Turns/Coil     3.6(3,3,4,4,4)     -     -    
Turns/Pole     -     110     -    
No. & Wire Size     7 - #14     1 - #7     -    
Mean Length Turn    
1036.3 mm (40.8 inch)    
-     -    
Copper Weight    
30.5 kg (67.2 lb)    

442.4 kg (975.4 lb)    
-    
Inside Connection (1)     4/2 Parallel Star     4 in Series     -    
Line Leads (No. & Size)     10 - #2     -     -    
Terminal bolt size     3/8 inch     -     -    
Low Voltage connected line
resistance at 25 ° C (77 ° F)    
0.012 ohms     -     -    
Field lead resistance at
25 ° C (77 ° F)    
-     0.63 ohms     -    
EXCITER WINDING DATA    
Exciter Frequency (Hz)     90 Hz    
Exciter Poles     6    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)    
Stack Length    
76.2 mm (3.0 inch)    

76.2 mm (3.0 inch)    
Coils/Group     1     2    
Slots (Coils)     6     36    
Turns (Coils)     105     6    
No. & Size Wire     1 - #15     2 - #14.5    
Coil Throw     1 - 2     1 - 6    
Mean Length Turn
(Calculated)    

365.8 mm (14.4 inch)    

304.8 mm (12.0 inch)    
Copper Weight    
3.9 kg (8.5 lb)    

3.4 kg (7.5 lb)    
Insulation     Heavy Nytherm    
Connection (2)     Series     2 Parallel Star    
Line Leads     #14

965.2 mm (38.0 inch)    
#10

152.4 mm (6.0 inch)    
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram #02
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram A

5N-9432 Generator

Table 10
MAIN STATOR AND ROTOR WINDING DATA    
ITEM     STATOR     ROTOR
(RANDOM
WOUND)    
ROTOR
(FORM
WOUND)    
Stack Height    
424.2 mm (16.7 inch)    

431.8 mm (17.0 inch)    
-    
Slots     54 (1)     -     -    
Coil Throw     1 - 12     -     -    
Turns/Coil     1     -     -    
Turns/Pole     -     160     -    
No. & Wire Size     30 - #13     1 - #7 sq     -    
Mean Length Turn    
1648.5 mm (64.9 inch)    
-     -    
Copper Weight    
64.2 kg (141.5 lb)    

98.4744 kg (217.1 lb)    
-    
Inside Connection (1)     4 in Series     4 in Series     -    
Line Leads (No. & Size)     20 - #00     -     -    
Terminal bolt size     3/8 inch     -     -    
Low Voltage connected line
resistance at 25 ° C (77 ° F)    
.0131     -     -    
Field lead resistance at
25 ° C (77 ° F)    
-     1.17     -    
EXCITER WINDING DATA    
Exciter Frequency (Hz)     90 Hz    
Exciter Poles     6    
ITEM     STATOR (FIELD)     ROTOR (ARMATURE)    
Stack Length    
127.0000 mm (5.0 inch)    

127.0000 mm (5.0 inch)    
Coils/Group     1     2    
Slots (Coils)     6     36    
Turns (Coils)     250     6    
No. & Size Wire     1 - #18     2 - #15    
Coil Throw     1 - 2     1 - 6    
Mean Length Turn
(Calculated)    

464.8 mm (18.3 inch)    

406.4 mm (16.0 inch)    
Copper Weight    
5.2 kg (11.5 lb)    

2.7 kg (5.9 lb)    
Insulation     Heavy Nytherm    
Connection (2)     Series     2 Parallel Star    
Line Leads     #14

965.2 mm (38.0 inch)    
#10

152.4 mm (6.0 inch)    
( 1 ) Wind 6 coil groups with 4 coils per group, wind 6 coil groups with 5 coils per group. Put coil groups in stator (4,5,4,5-etc).
( 1 ) See Specifications, "Connection Diagrams for Main Stator and Main Rotor" Connection Diagram #36
( 2 ) See Specifications, "Connection Diagrams for Exciter" Connection Diagram H

Note: Wires 20, 22, and 24 are brought out as tap connections between the 9th and 10th coil (9 turns from T0).

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