15
2020.05 / c
Electric Power Generation
Installation and maintenance
LSAH 44.3
Low Voltage Alternator - 4 pole
5577 en -
4.8 - Table of characteristics
Table of average values:
Alternator - 4 poles - 50 Hz - Standard
winding No. 6S (6-wire)
The voltage and current values are given for
no-load operation and operation at rated
load with separate field excitation.
All values are given to within ± 10% and may
be changed without prior notification (for
exact values, consult the test report).
• Three-phase: 4 pole AREP excitation
Resistances at 20 °C (Ω)
Type
Stator L/N Rotor Exciter
field
Exciter
armature
M4
0.021
2.64
8.07
0.920
M6
0.022
2.89
8.07
0.920
L8
0.015
3.15
8.07
0.920
VL12
0.010
3.86
8.07
0.920
Resistances of auxiliary windings at
20 °C (Ω)
Type
X1, X2
Z1, Z2
M4
0.300
0.552
M6
0.283
0.553
L8
0.265
0.536
VL12
0.272
0.591
Field excitation current i exc (A)
400V - 50 Hz
“i exc”: excitation current of the exciter field
Type
No load
At rated load
M4
1.08
1.40
M6
0.74
1.35
L8
0.94
1.42
VL12
0.94
1.39
For 60 Hz machines, the “i exc” values are
approximately 5 to 10 % lower.
• Table of weights
(values given for information only)
Type
Total weight (kg)
Rotor (kg)
M4
545
135.5
M6
580
147
L8
622
160.5
VL12
750
206
After operational testing, it is essential
to replace all access panels or covers.
