SDMO R570U - Page 234

8
LEROY-SOMER
2011.03/ g
Installation and maintenance
LSA 47.2 - 4 POLES
ALTERNATORS
3742 en -
Connection codes Voltage L.L Factory connection
L1(U)
N
L3(W)
T1
T7
T12
T10
T4
T9
T3
T6
T11
T5
T2
T8
L2(V)
A
3-phase
3-phase
Winding
60 Hz50 Hz
190 - 208 190 - 240
220
-
-
190 - 208
6
7
8
6
7
8
9
6
7
8
N
T1
T7
T12
T10
T4
T9
T3
T6
T11
T5
T2
T8
L1(U)
L3(W)
L2(V)
D
F
L1(U)
M
L3(W)
T1
T7
T12
T10
T4
T9
T3
T6
T11
T5
T2
T8
L2(V)
Voltage LM = 1/2 voltage LL
R 250 voltage sensing:
0 => (T8) / 110 V => (T11)
R 450 voltage sensing:
0 => (T3) / 220 V => (T2)
Winding
60 Hz50 Hz
380 - 415 380 - 480
440
600
-
-
380 - 416
R 250 voltage sensing:
0 => (T8) / 110 V => (T11)
NDE
L1(U)
L2(V)
L3(W)
Single-phase
or
3-phase
Winding
60 Hz50 Hz
220 - 240
220 - 240
220 - 240
240 - 254
-
-
-
L
L
R 250 voltage sensing:
0 => (T8) / 110 V => (T11)
T11
T12
T10
T4
T6
T5
T7
T8
T9
T1
T2
T3
N
(
*
)
In case of reconnection, ensure that AVR voltage sensing is correct!
Winding 9: R 450 voltage sensing + transformer (Diagram on request)
NDE
L1(U)
L2(V)
L3(W)
T11
T12
T10
T4
T6
T5
T7
T8
T9
T1
T2
T3
N
M
AR
L1(U)
L2(V)
L3(W)
T11
T12
T10
T4
T6
T5
T7
T8
T9
T1
T2
T3
Operating phases L2 (V), L3 (W)
single phase
The factory can supply a set of flexible shunts and special connection links as an option for making these connections (*).
R 450 voltage sensing:
0 => (T3) / 380 V => (T2)
R 450 voltage sensing:
0 => (T3) / 220 V => (T2)
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