2017.09 / f
Electric Power Generation
20
Installation and maintenance
TAL 046
Low Voltage Alternators - 4 pole
5377 en -
• Three-phase: 4-pole
SHUNT excitation 6 and 12-wire
Resistances at 20 °C (Ω)
Type
Stator L/N Rotor Exciter
field
Exciter
armature
A
0.023
0.51
14.42
0.033
B
0.023
0.51
14.42
0.033
C
0.020
0.54
9.55
0.098
D
0.020
0.54
9.55
0.098
E
0.011
0.65
11.10
0.035
F
0.011
0.65
11.10
0.035
G
0.009
0.76
11.10
0.035
H
0.009
0.76
11.10
0.035
J*
-
-
-
-
Field excitation current i exc (A)
400V - 50 Hz
“i exc”: excitation current of the exciter field
Type
No load
At rated load
A
0.76
3.12
B
0.76
3.53
C
1.02
3.81
D
1.02
4.12
E
0.92
3.33
F
0.92
3.71
G
0.86
3.27
H
0.86
3.84
J*
-
-
For 60 Hz machines, the “i exc” values are
approximately 5 to 10 % lower.
• Three-phase: 4-pole
AREP excitation 6 and 12-wire
Resistances at 20 °C (Ω)
Type
Stator L/N Rotor Exciter
field
Exciter
armature
A
0.023
0.51
14.42
0.033
B
0.023
0.51
14.42
0.033
C
0.020
0.54
9.55
0.098
D
0.020
0.54
9.55
0.098
E
0.011
0.65
11.10
0.035
F
0.011
0.65
11.10
0.035
G
0.009
0.76
11.10
0.035
H
0.009
0.76
11.10
0.035
J*
-
-
-
-
Resistance of auxiliary windings at
20 °C (Ω)
Type
X1, X2 auxiliary
windings
Z1, Z2 auxiliary
windings
A
0.363
0.533
B
0.363
0.533
C
0.336
0.511
D
0.336
0.511
E
0.388
0.618
F
0.388
0.618
G
0.316
0.410
H
0.316
0.410
J*
-
-
Field excitation current i exc (A)
400V - 50 Hz
“i exc”: excitation current of the exciter field
Type
No load
At rated load
A
0.76
3.12
B
0.76
3.53
C
1.02
3.81
D
1.02
4.12
E
0.92
3.33
F
0.92
3.71
G
0.86
3.27
H
0.86
3.84
J*
-
-
• Table of weights
(values given for information only)
Type
Total weight (kg)
Rotor (kg)
A
569
243
B
599
243
C
674
255
D
682
255
E
754
304
F
754
304
G
888
358
H
888
358
J*
-
-
* Available soon
After operational testing, it is essential
to replace all access panels or covers.
