Table Of Characteristics - SDMO R570U User And Maintenance Manual

LEROY-SOMER

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 - Average values for the LSA 47.2
Resistances at 20 °C (Ω)
LSA 47.2 L/N stator Rotor Field Armature
VS2 0.0081
VS3 0.0081
S4 0.0063
S5 0.0063
M7 0.0045
M8 0.0047
L9 0.0039
LSA 47.2 - 6 wires
L9 0.0039
Resistance of AREP auxiliary windings
at 20°C (Ω)
LSA 47.2 Auxil wdg: X1, X2 Auxil wdg: Z1, Z2
VS2 0.2
VS3 0.2
S4 0.195
S5 0.195
M7 0.165
M8 0.17
L9 0.168
LSA 47.2 - 6 wires
L9 0.168
Installation and maintenance
LSA 47.2 - 4 POLES
ALTERNATORS
0.77 10.2 0.128
0.77 10.2 0.128
0.88 10.2 0.128
0.88 10.2 0.128
0.98 10.2 0.128
1.03 10.2 0.128
1.1 10.2 0.128
1.1 10.2 0.128
0.38
0.38
0.40
0.40
0.33
0.35
0.34
0.34
241/297
Field excitation current i exc (A)
Symbols: "i exc": excitation current of the
exciter field
LSA 47.2 No load
VS2 1
VS3 1
S4 0.9
S5 0.9
M7 1
M8 0.85
L9 0.95
LSA 47.2 - 6 wires
L9 0.95
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 47.2 Auxil wdg: X1, X2 Auxil wdg: Z1, Z2
50 Hz 70 V
60 Hz 85 V
4.8.3 - Table of weights
(values given for information only)
LSA 47.2 Total weight (kg)
VS2 1000
VS3 1000
S4 1130
S5 1130
M7 1255
M8 1300
L9 1400
After operational testing, it is essential to
replace all access panels or covers.
3742 en - 2011.03/ g
At rated load
4
4
3.4
3.8
3.65
3.7
3.75
3.7
10 V
12 V
Rotor (kg)
390
390
445
445
495
515
550
17