3867 en - 10.
2004 / b
Alternators
LSA 49.1 - 4 Pole
Electrical and mechanical data
LSA 49.1 - 4 Pole
SPECIALLY ADAPTED FOR APPLICATIONS
The LSA 49.1 alternator is designed to be suitable for typical generator applications, such as: backup,
standard production, cogeneration, marine applications, rental, telecommunications, etc.
COMPLIANT WITH INTERNATIONAL STANDARDS
The LSA 49.1 alternator conforms to the main international standards and regulations:
IEC 60034, NEMA MG 1.22, ISO 8528, CSA, CSA/UL, marine regulations, etc.
It can be integrated into a CE marked generator.
The LSA 49.1 is designed, manufactured and marketed in an ISO 9001 environment.
TOP OF THE RANGE ELECTRICAL PERFORMANCE
- Class H insulation.
- Standard 6-wire re-connectable winding, 2/3 pitch, type no. 6.
- Voltage range 50 Hz : 380V - 400V - 415V and 220V - 230V - 240V ,
- Voltage range 60 Hz : 380V - 416V - 440V - 480V and 220 V - 240 V.
- High efficiency and motor starting capacity.
- Other voltages are possible with optional adapted windings :
- 50 Hz : 440 V (no. 7), 500 V (no. 9), 600 V (no. 22 or 23), 690 V (no. 10 or 52)
- 60 Hz : 380 V and 416 V (no. 8), 600 V (no. 9).
- Total harmonic content < 4 %.
- R 791 interference suppression conforming to standard EN 55011 group 1 class B standard for European zone (CE marking).
EXCITATION AND REGULATION SYSTEM SUITED TO THE APPLICATION
Excitation system
Voltage
regulator
AREP
PMG
R 448
Std
Option
Regulation options
Current transformer
for paralleling
Mains paralleling
R 726
3-phase sensing
R 731
R 734
Remote voltage
potentiometer
mains paralleling
unbalanced
Voltage regulator accuracy +/- 0.5%.
PROTECTION SYSTEM SUITED TO THE ENVIRONMENT
- The LSA 49.1 is IP 23.
- Standard winding protection for clean environments with relative humidity 95 %, including indoor marine environments.
Options:
Filters on air inlet and air outlet (IP 44).
Winding protections for harsh environments and relative humidity greater than 95%.
Space heaters.
Thermal protection for winding.
REINFORCED MECHANICAL STRUCTURE USING FINITE ELEMENT MODELLING
- Standard direction of rotation : clockwise when looking at the drive end view (engine side).
- Compact and rigid assembly to better withstand generator vibrations.
- Steel frame.
- Cast iron flanges and shields.
- Twin-bearing and single-bearing versions designed to be suitable for engines on the market.
- Half-key balancing.
- Regreasable bearings.
ACCESSIBLE TERMINAL BOX PROPORTIONED FOR OPTIONAL EQUIPMENT
- Easy access to the voltage regulator and to the connections.
- Possible clusion of accessories for paralleling, protection and measurement.
- Connection bar for reconnecting voltage .
Copyright 2004 : MOTEURS LEROY-SOMER
Products and materials shown in this catalogue may, at any time, be modified in order to follow the latest technological developments, improve the design or change conditions of utilization.
Their description cannot, in any case, engage LEROY-SOMER liability. The values indicated are typical values.
LSA 49.1 - 4 Pole
Common data
H
Insulation class
Winding pitch
Excitation system
2/3 ( N 6S)
Terminals
Drip proof
IP 23
A R E P or PMG
A.V.R. model
R 448
Voltage regulation (*)
0,5 %
Sustained short-circuit current
300% (3 IN) : 10s
Altitude
1000 m
Total harmonic (* *) TGH / THC
at no load < 4 % - on load < 4%
Overspeed
2250 min-1
Waveform : NEMA = TIF - (* *)
< 50
1 m /s (50Hz) / 1,2 (60Hz)
Wave form : C.E.I. = FHT - (* *)
<2%
Air flow
(*) Steady state duty. (**) Total harmonic content line to line, at no load or full rated linear and balanced load.
Ratings 50 Hz - 1500 r.p.m.
kVA / kW - Power factor = 0,8
Duty T C
Class / T K
Phase
Y
49.1 S4
49.1 M6
49.1 M75
49.1 L9
49.1 L10
Continuous duty / 40 C
H / 125 K
3 ph.
Continuous duty / 40 C
F / 105 K
3 ph.
Stand-by / 40 C
H / 150 K
3 ph.
Stand-by / 27 C
H / 163 K
3 ph.
380V
400V
415V
380V
400V
415V
380V
400V
415V
380V
400V
415V
220V
230V
240V
220V
230V
240V
220V
230V
240V
220V
230V
240V
kVA
660
660
660
594
594
594
693
693
693
725
725
725
kW
528
528
528
475
475
475
554
554
554
580
580
580
kVA
725
725
725
653
653
653
760
760
760
800
800
800
kW
580
580
580
522
522
522
608
608
608
640
640
640
kVA
775
800
775
698
720
698
810
840
810
850
880
850
kW
620
640
620
558
576
558
648
672
648
680
704
680
kVA
880
880
880
792
792
792
920
920
920
960
960
960
kW
704
704
704
634
634
634
736
736
736
768
768
768
kVA
890
910
890
800
820
800
934
955
934
979
1000
979
kW
712
728
712
640
656
640
747
764
747
783
800
783
Ratings 60 Hz - 1800 r.p.m.
kVA / kW - PF = 0,8
Duty / T C
Class / T K
Phase
Y
YY
49.1 S4
49.1 M6
49.1 M75
49.1 L9
49.1 L10
Continuous duty / 40 C
H / 125 K
F / 105 K
3 ph.
3 ph.
380V
416V
220V
240V
440V
480V
380V
416V
220V
240V
440V
Stand-by / 40 C
H / 150 K
3 ph.
480V
380V
416V
220V
240V
440V
Stand-by / 27 C
H / 163 K
3 ph.
480V
380V
416V
220V
240V
440V
480V
208V
220V
240V
208V
220V
240V
208V
220V
240V
208V
220V
240V
kVA
710
710
725
792
639
639
652
712
745
745
760
830
781
781
798
871
kW
568
568
580
634
511
511
522
570
596
596
608
664
625
625
638
697
kVA
780
780
800
870
702
702
720
783
819
819
840
913
858
858
880
957
kW
624
624
640
696
562
562
576
626
655
655
672
730
686
686
704
766
kVA
866
936
960
960
780
842
865
865
910
983
1008
1008
953
1030
1056
1056
kW
693
749
768
768
624
674
692
692
728
786
806
806
762
824
845
845
kVA
910
980
1010
1056
819
882
909
950
955
1029
1060
1108
1000
1078
1111
1162
kW
728
784
808
845
655
706
727
760
764
823
848
886
800
862
889
930
kVA
958
1020
1050
1092
862
918
945
983
1006
1071
1102
1146
1054
1122
1155
1200
kW
766
816
840
874
690
734
756
786
805
857
882
917
843
898
924
960
LSA 49.1 - 4 Pole
Efficiencies 50 Hz - P.F. : 1 / P.F. : 0,8
LSA 49.1 L9
LSA 49.1 S4
97%
96.7
97%
P.F. : 1
96
96
96.1
95.8
96.4
96
95.8
95
94.6
93.9
94.5
P.F. : 0,8
93.7
P.F. : 1
96.6
95.2
95.5
95.4
95
94
96.7
P.F. : 0,8
95
94.3
94
93.7
93.7
93
93
92.9
92
92
100
200
300
400
500
600
700
800 kVA
100
200
300
400
96.3
P.F. : 1
94.6
95
94.9
96.7
P.F. : 0,8
94.4
94
900
1000 kVA
95.1
95.5
P.F. : 0,8
94.9
93.8
93
93
P.F. : 1
94.5
93.8
93
800
96.6
95.4
95
94
96.7
96.4
96
96.2
96
95
700
97%
96.4
96
600
LSA 49.1 L10
LSA 49.1 M6
97%
500
92
92
100
200
300
400
500
600
700
800 kVA
100
200
300
400
500
600
700
800
900
1000 kVA
LSA 49.1 M75
97%
96.2
96.4
96
96.1
95
95
P.F. : 1
96.1
94.4
94.9
94
94.2
93
P.F. : 0,8
94.1
93.4
92
100
200
300
400
500
600
700
800
900
1000kVA
Reactances Class H / 400 V - Time constants (ms)
S4
M6
M75
L9
L10
Kcc
Short-circuit ratio
0,38
0,43
0,39
0,43
0,41
Xd
Direct axis synchro.reactance unsaturated
343
301
332
304
315
Xq
Quadra. axis synchr.reactance unsaturated
205
180
199
182
189
Tdo
Open circuit time constant
1958
2047
2047
2111
2111
Xd
Direct axis transient reactance saturated
17,5
14,7
16,2
14,4
14,9
Td
Short-Circuit transient time constant
100
100
100
100
100
X"d
Direct axis subtransient reactance saturated
14
11,7
12,9
11,5
11,9
10
T"d
Subtransient time constant
10
10
10
10
X"q
Quadra. axis subtransient reactance saturated
16,3
13,1
14,5
12,5
13
Xo
Zero sequence reactance unsaturated
0,9
0,7
0,8
0,8
0,9
X2
Negative sequence reactance saturated
15,2
12,5
13,8
12,1
12,5
Ta
Armature time constant
15
15
15
15
15
Other data - Class H / 400 V
io (A)
No load excitation current
0,9
0,9
0,,9
0,9
0,9
ic (A)
Full load excitation current
3,6
3,2
3,5
3,3
3,4
uc (V)
Full load excitation voltage
43
38
41
39
40
Recovery time (U = 20 % trans.)
500
500
500
500
500
2372
ms
Motor start. (U = 20% sust.) or (U = 50% trans.)
1578
1985
1985
2372
Transient dip (rated step load) - PF : 0,8 LAG
13,3
10,9
11,7
10,7
11
No load losses
8110
9000
9000
9860
9860
Heat rejection
33710
32740
37700
35340
37030
kVA
LSA 49.1 - 4 Pole
Transient voltage variation 400V - 50 Hz
Load application ( AREP or PMG system)
20 %
S4
M6
15
% Voltage dip
M 75
L9
L 10
10
0
0
100
200
300
400
500
600
700
800
900
1000 kVA
kVA at 0,8 power factor
Load rejection (AREP or PMG system)
S4
20 %
M6
M 75
% Voltage rise
15
L9
L 10
10
0
0
100
200
300
400
500
600
700
800
900
1000 kVA
kVA at 0,8 power factor
Motor starting (AREP or PMG system)
S4
M6
M 75
L9
L 10
30%
% Voltage dip
25
20
15
10
5
0
0
250
500
750
1000
1250
1500
1750
2000
2250
2500 kVA
Locked rotor
1 ) For a starting P.F. differing from 0,6, the starting kVA must be multiplied by (Sine / 0,8)
2 ) For voltages other than 400 V (Y) , 230 V () at 50 Hz , then kVA must be multiplied by (400/U)2 ou (230/U)2 .
LSA 49.1 - 4 Pole
Efficiencies 60 Hz - P.F. : 1 / P.F. : 0,8
LSA 49.1 S4
LSA 49.1 L9
95.9
96%
P.F. : 1
95.8
95.8
95
94.4
93.9
95.3
P.F. : 0,8
95.4
95
92.3
P.F. : 1
96.6
95.8
P.F. : 0,8
94.1
94.1
93
96.6
96.5
96
95.2
94
97%
95
95.1
94
93.1
92
93
92,6
91.6
91
100
92
200
300
400
500
600
LSA 49.1 M6
96%
700
96.2
800
600 700
800 900 1000 1100 1200 kVA
LSA 49.1 L10
97%
95.3
94.7
P.F. : 0,8
94.9
94
200 300 400 500
P.F. : 1
96.2
96.1
95
900 kVA
94.6
94.4
93
96.6
96.6
96.5
96
P.F. : 1
95.9
95.2
P.F. : 0,8
95.4
95
95.1
95
94
92.4
92
93
91.8
92,8
91
100
200
93.3
300
400
500
600
700
800
900
1000 kVA
92
200 300 400 500
600 700
800 900 1000 1100 1200 kVA
LSA 49.1 M75
97%
P.F. : 1
96.2
96
95.6
96.1
96.1
95
94.6
94.6
94
93
94.8
P.F. : 0,8
94.4
93
92.3
92
100
200 300
400 500 600
700
800
900 1000 1100 kVA
Reactances Class H / 480 V - Time constants (ms)
S4
M6
M75
L9
L10
Kcc
Short-circuit ratio
0,38
0,43
0,39
0,43
0,41
Xd
Direct axis synchro.reactance unsaturated
343
301
332
304
315
Xq
Quadra. axis synchr.reactance unsaturated
205
180
199
182
189
Tdo
Open circuit time constant
1958
2047
2047
2111
2111
Xd
Direct axis transient reactance saturated
17,5
14,7
16,2
14,4
14,9
Td
Short circuit transient time constant
100
100
100
100
100
X"d
Direct axis subtransient reactance saturated
14
11,7
12,9
11,5
11,9
10
T"d
Subtransient time constant
10
10
10
10
X"q
Quadra. axis subtransient reactance saturated
16,3
13,1
14,5
12,5
13
Xo
Zero sequence reactance unsaturated
0,9
0,7
0,8
0,8
0,9
X2
Negative sequence reactance saturated
15,2
12,5
13,8
12,1
12,5
Ta
Armature time constant
15
15
15
15
15
Other data - Class H / 480 V
io (A)
No load excitation current
0,9
0,9
0,9
0,9
0,9
ic (A)
Full load excitation current
3,6
3,2
3,5
3,2
3,3
uc (V)
Full load excitation voltage
42
38
41
38
39
Recovery time (U = 20 % trans.)
500
500
500
500
500
2972
ms
kVA
Motor start. (U = 20% sust.) or (U = 50% trans.)
1950
2482
2482
2972
Transient dip (rated step load) - PF : 0,8 LAG
13,3
10,9
11,7
10,7
11
No load losses
12570
13820
13820
15030
15030
Heat rejection
39100
38520
43730
41600
43380
LSA 49.1 - 4 Pole
Transient voltage variation 480V - 60 Hz
Load application ( AREP or PMG system)
20 %
S4
M6
% Voltage dip
15
M 75
L9
L 10
10
0
0
100
200
300
400
500
600
700
kVA at 0,8 power factor
800
900
1000
1100
1200 kVA
Load rejection (AREP or PMG system)
S4
20 %
M6
% Voltage rise
M 75
15
L9
L 10
10
0
0
100
200
300
400
500
600
700
800
kVA at 0,8 power factor
900
1000
1100
1200 kVA
Motor starting (AREP or PMG system)
S4
M6
M 75
L9
L 10
30%
% Voltage dip
25
20
15
10
5
0
0
250
500
750
1000
1250
1500
1750
2000
2250
2500
2750
3000 kVA
Locked rotor
1 ) For a starting P.F. differing from 0,6 , the starting kVA must be multiplied by (Sine / 0,8 ).
2 ) For voltages other than 480 V (Y) , 277 V (), 240 V (YY) at 60 Hz , then, kVA must be multiplied by
(480 / U)2 or (277 / U)2 or (240/U)2 .
LSA 49.1 - 4 Pole
3 phase short-circuit curves at no load and rated speed (star connection Y)
100000
Current (A)
LSA 49.1 S4
Symmetrical
Asymmetrical
10000
1000
100
1
10
100
1000
10000
time (ms)
100000
LSA 49.1 M6
Symmetrical
Asymmetrical
Current (A)
10000
1000
100
1
10
100
1000
10000
time (ms)
100000
LSA 49.1 M75
Symmetrical
Asymmetrical
Current (A)
10000
1000
100
1
10
Influence due to connexion
Curves shown are for star connection (Y).
For other connections, use the following multiplication factors :
- Series delta : Current value x 1,732
- Parallel star : Current value x 2
100
1000
10000
time (ms)
LSA 49.1 - 4 Pole
3 phase short-circuit curves at no load and rated speed (star connection Y)
100000
Symmetrical
Asymmetrical
Current (A)
LSA 49.1 L9
10000
1000
100
1
10
100
1000
10000
time (ms)
100000
Symmetrical
Asymmetrical
LSA 49.1 L10
Current (A)
10000
1000
100
1
10
100
1000
10000
time (ms)
Influence due to short-circuit.
Curves are based on a three-phase short-circuit.
For other types of short-circuit, use the following multiplication factors :
3 phase
2 phase L - L.
1 phase L - N.
Instantaneous (Max)
0,87
1,3
Sustained
1,5
2,2
Max sustained duration (AREP/ PMG)
10 sec.
5 sec.
2 sec.
LSA 49.1 - 4 Pole
Single bearing dimensions
L
Y DIA, X eq. sp. hole on U PCD
LB
Xg
AH
792
1115'
37
626
CF
1058
Diode
access
Air outlet
216
300
C
27
100
Air inlet
686
786
281
S DIA, XBG eq. sp. hole on M PCD
2 x 2 hole 35
90
Frame dimensions (mm)
TYPE
L max without PMG
LSA 49.1 S4
1315
LB
1272
C
560
Xg
635
Weight (kg)
1445
LSA 49.1 M6
1415
1372
650
670
1645
Flange S.A.E
LSA 49.1 M75
1415
1372
650
670
1645
Flange S.A.E
LSA 49.1 L9
1515
1472
650
710
1845
LSA 49.1 L10
1515
1472
650
710
1845
W
7
R
438
CF
17
850,9
16
14
504
20
Flex plate dimensions (mm)
S.A.E.
BX
U
14
466,7
438,15
18
Torsional analysis data
X
X
X
8
Y
14
AH
25,4
15,7
571,5
542,92
17
140
787,4
S
14
18
145
884
XBG
16
14
150
00
M
679,45
Flex plate
145
Flange dimensions (mm)
S.A.E.
P
N
0
752
647,7
Coupling
135
130
Xr
100
230
PMG option
400 - 1
235
742
- 0,050
BX - 0,100
N - 0,127
85,3
658
AVR
access
R
option
17
Lr
Gravity center : Xr (mm), Rotor length Lr (mm), Weight : M (kg), Moment of inertia : J (kgm2) : (4J = MD2)
Flex plate S.A.E. 14
Flex plate S.A.E. 18
TYPE
Xr
Lr
M
J (kg)
Xr
Lr
M
601
1280
536
8,51
591
1280
539
LSA 49.1 S4
J (kg)
8,76
LSA 49.1 M6
651
1380
618
10,14
641
1380
621
10,39
LSA 49.1 M75
651
1380
618
10,14
641
1380
621
10,39
LSA 49.1 L9
701
1480
700
11,78
691
1480
703
12,03
LSA 49.1 L10
701
1480
700
11,78
691
1480
70,3
12,03
10
LSA 49.1 - 4 Pole
Two bearing dimensions
L
LB
165
792
Xg
37
626
11 15'
20
1 hole
M24x50
AVR access
106
27
PMG option
400 - 1
16
28
742
1058
658
438
Option
235
100 m6
753
647,7 - 0,127
85,3
Diode access
100
Air outlet
Air intlet
198
290
600
686
786
281
M12 DIA,16 eq.sp. hole on 679,45 PCD
2 x 2 hole 35
500
Frame dimensions (mm)
TYPE
LSA 49.1 S4
L maxi without PMG
1419
LB
1254
Xg
620
Weight (kg)
1470
LSA 49.1 M6
1519
1354
655
1670
LSA 49.1 M75
1519
1354
655
1670
LSA 49.1 L9
1619
1454
695
1870
LSA 49.1 L10
1619
1454
695
1870
Torsional analysis data
Xr
100
140
145
150
145
135
110
100
165
Lr
Gravity center : Xr (mm), Rotor length Lr (mm), Weight : M (kg), Moment of inertia : J (kgm2) : (4J = MD2)
TYPE
LSA 49.1 S4
Xr
503
Lr
1397
M
502
J (kg)
8,04
LSA 49.1 M6
553
1497
584
9,67
LSA 49.1 M75
553
1497
584
9,67
LSA 49.1 L9
603
1597
666
11,31
LSA 49.1 L10
603
1597
666
11,31
11
LEROY-SOMER 16015 ANGOULME CEDEX - FRANCE
RCS ANGOULME N B 671 820 223
S.A. au capital de 62 779 000
www.leroy-somer.com
