17
LEROY-SOMER
2011.01/ h
Installation and maintenance
LSA 46.2 - 4 POLES
ALTERNATORS
3856 en -
4.8 - Table of characteristics
Table of average values
Alternator - 4 poles - 50 Hz - Standard
winding No. 6.
(400V for the excitation values)
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).
4.8.1 - LSA46.2 average values
Resistances at 20 °C (Ω)
LSA 46.2
Stator L/N Rotor Field Armature
M3
0.022
0.23
8.8
0.035
M5
0.0182
0.24
8.8
0.035
L6
0.0148 0.264 8.8
0.035
L9
0.012
0.295 8.8
0.035
VL12
0.0085 0.343 10
0.037
Resistance of AREP auxiliary windings
at 20 °C (Ω)
LSA 46.2
Auxil wdg: X1, X2 Auxil wdg: Z1, Z2
M3
0.24
0.4
M5
0.215
0.36
L6
0.185
0.36
L9
0.19
0.32
VL12
0.17
0.32
Field excitation current i exc (A)
Symbols : “i exc”: excitation current of the
exciter field
LSA 46.2
No load
At rated load
M3
1.1
4
M5
1.1
3.8
L6
1.1
4.1
L9
1.2
4
VL12
1.1
3.5
For 60 Hz machines, the “i exc” values are
approximately 5 to 10 % lower.
4.8.2 - Voltage of auxiliary windings at
no load
LSA 46.2
Auxil wdg: X1, X2 Auxil wdg: Z1, Z2
50 Hz
70 V
10 V
60 Hz
85 V
12 V
4.8.3 - Table of weights
(values given for information only)
LSA 46.2
Total weight (kg)
Rotor (kg)
M3
600
250
M5
700
260
L6
800
290
L9
850
320
VL12
1000
380
After operational testing, it is essential to
replace all access panels or covers.
229/285
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